A new species of the genus Moitessieria Bourguignat, 1863 from Catalonia (Spain) is described, found in sediments from a spring in Sant Joan les Fonts (Girona). The new species is compared with other congeneric species from which it conchologically differs.Es descriu una espècie nova del gènere Moitessieria Bourguignat, 1863 per a Catalunya (Espanya), trobada en sediments procedents d’una font a Sant Joan les Fonts (Girona). L’espècie nova es diferencia de les altres espècies conegudes del gènere per diferents caràcters conquiliològics

Quiñonero Salgado, Sergio

Rolán-Alvarez, Emilio

English

Quiñonero-Salgado, Sergio

Repositori Institucional de la Universitat Jaume I

NEMUSnúm. 9. 2019NEMUS núm. 9. 2019, pàg. 105 - 111 105A new species of the genus Moitessieria Bourguignat, 1863 (Gastropoda: Moitessieriidae) from Catalonia, SpainSergio Quiñonero-Salgado1*  & Emilio Rolán2.1. Associació Catalana de Malacologia, Museu Blau, plaça Leonardo da Vinci 4-5, 08019 Barcelona, Spain. 2. Museo de Historia Natural de la Universidad de Santiago, Campus Norte, Parque Vista Alegre, 15782. Santiago de Compostela, Spain.*Corresponding author: sergioqs85@hotmail.comA new species of the genus Moitessieria Bourguignat, 1863 from Catalonia (Spain) is described, found in sedi-ments from a spring in Sant Joan les Fonts (Girona). The new species is compared with other congeneric spe-cies from which it conchologically differs.Keywords: Gastropoda, Moitessieriidae, Moitessieria, new species.Espècie nova del gènere Moitessieria (Gastropoda: Moitessieriidae) per a Catalunya, EspanyaEs descriu una espècie nova del gènere Moitessieria Bourguignat, 1863 per a Catalunya (Espanya), trobada en sediments procedents d’una font a Sant Joan les Fonts (Girona). L’espècie nova es diferencia de les altres espè-cies conegudes del gènere per diferents caràcters conquiliològics.Mots clau: Gastropoda, Moitessieriidae, Moitessieria, espècie nova.The family Moitessieriidae Bourguignat, 1863 is represented by freshwater species, with several charac-ters related to their strictly stygobiotic habitat, such as the colourless shell and the anophtalmy (lack of eyes).In Spain, this family is represented by five genera: Moitessieria Bourguignat, 1863; Palaospeum Boeters, 1999; Baldufa Alba, Tarruella, Prats, Guillén & Cor-bella, 2010; Sardopaladilhia Manganelli, Bodon, Cian-fanelli, Talenti & Giusti, 1998; and Spiralix Boeters, 1972. They differ from Hydrobiidae Stimpson, 1865 in base to several anatomical characters (Boeters & Git-tenberger, 1990).The species of the genus Moitessieria Bourguignat, 1863 are characterized by their small size, semi-trans-lucent shell, spiral ornamentation and, in most cases, a high number of whorls. In Spain, this genus includes a large number of species, distributed throughout Cata-lonia, Comunitat Valenciana, Aragón and Navarra (Altimira, 1960; Boeters, 2003; Alba et al., 2011; Cor-bella et al., 2011, 2012; Tarruella et al., 2012, 2013, 2015; Quiñonero-Salgado & Rolán, 2017).In the present work, a new species of this genus is described for Catalonia (Spain), differing from other congeneric species already described by its concholo-gical characteristics.Material and methodsThe shells of the species here described were collected from sediment from the spring known as font de les Molleres, at Sant Joan les Fonts (Girona, Catalonia, Spain). Dried sediment was sorted with 2 mm, 1 mm and 0.5 mm sieves and then the shells were separated under a stereomicroscope for their determination. Finally, they were cleaned with water and a small brush.Abbreviations: MZB: Museu de Ciències Naturals de Barcelona. ZUPV: Colección de Fauna caverní-cola (departamento de Zoología) de la Universidad del País-Vasco-Euskal Herriko Unibertsitatea, Bilbao, Spain. SEM: Scanning Electron Microscopy. CQS: Collection Quiñonero-Salgado. S: Shell/s.ResultsFamily: Moitessieriidae Bourguignat, 1863Genus Moitessieria Bourguignat, 1863Type species: Paludina simoniana Saint-Simon, 1848Moitessieria pesanta sp. n. Figs. 1 i 2.Type material: (Fig. 2A) holotype MZB2019-0010; paratypes: 2 s MZB20190011, 8 s ZUPV-5561, 20 s in CQS.S. Quiñonero-Salgado & E. Rolán A new species of the genus Moitessieria (Gastropoda) from Catalonia106 NEMUS núm. 9. 2019, pàg. 105 - 111Type locality: font de les Molleres, Sant Joan les Fonts (Fig. 3). Sediment was collected from the nearby canal that drains water from the spring. UTM coordi-nates: 31T 458430 4673240. Height: 360 m. This spring is located in the Fluvià hydrological basin. Etymology: the new species is dedicated to the mythological entity known as “Pesanta”, from la Garrotxa. During the day, this being hides in one of the several volcano cones that make the area geologically remarkable. At night, carried by the wind, it squeezes into locket houses through keyholes, and then lies res-ting on the chest of sleeping people, suffocating them with its large weight and causing nightmares.Description: shell small (height from 1.3 to 1.4 mm, width from 0.5 to 0.6 mm), quite fragile, translucent when fresh, subcylindrical (Fig. 1A-B), with 4-5.5 whorls and deep suture. Teleoconch sculpture of very fine spiral cordlets, with wider intermediate spaces (Fig. 1C-D), being more irregular under the suture. Protoconch sculpture complex, alternating quite fine spiral lines with spirally arranged elongated tubercles. (Fig. 1E-G). Last whorl is straight in the final section. Aperture oval, umbilicus narrow.Dimensions: see Table 1, Fig. 4 for further measurements.Habitat: stygobioticDistribution: only known from the type locality.Differential diagnosis: general conchological cha-racters allow us to place the new species in the genus Moitessieria: translucent turriculated shell, small size, marked spiral ornamentation and stygobiotic habitat. The species differs from other genera in the family in these primary characters:Baldufa Alba, Tarruella, Prats, Guillén & Corbella, 2010 has a marked thickening in the shell, with tro-choid shape, smaller number of whorls, and proto-conch ornamentation formed by a very marked, spi-rally distributed pitting.Henrigirardia Boeters et Falkner, 2003 has similar ornamentation, but trochoid shape, smaller number of whorls and wider umbilicus.Palaospeum Boeters, 1999 has a bigger shell and a very faint or even absent microsculpture.Sorholia Boeters et Falkner, 2009 has the last whorl detached from the spire. Sardopaladilhia Manganelli, Bodon, Cianfanelli, Talenti & Giusti, 1998 has a different microsculpture, bigger size and a wider and more expanded aperture.Spiralix Boeters, 2003 has normally bigger shells and an attenuated spiral ornamentation. In the subgenus Burgosia Boeters, 2003 the sculpture is formed by cunei-form marks, and also has a protoconch microsculpture formed by angular depressions, irregularly placed.The new species is compared with the most similar species of the genus, giving the diagnostic conchiliolo-gical characters that lead us to consider it as newFor this comparison, the following works have been employed: Bertrand, 2001; Boeters, 2003; Corbella Alonso et al., 2006; Alba et al., 2007; Corbella et al., 2011, 2012; Alba et al., 2013; Callot-Girardi, 2013; Quiñonero - Salgado & Rolán, 2017.Moitessieria barrinae Alba et al 2007 has a different microsculpture, including a smooth protoconch and teleoconch formed by crests and pitting.Moitessieria fontsaintei Bertrand, 2001 has a larger shell and slightly oval aperture, with the lip more expanded than M. pesanta sp. n. Its protoconch microsculpture consists of spiral striations, formed by regularly arranged, small axially elongated papi-llae. On the contrary, M. pesanta sp. n. microsculpture alternates quite fine spiral lines with spirally arranged elongated tubercles. Teleoconch microsculpture is reticulated for M. fontsaintei, while M. pesanta sp. n. features only spiral lines, slightly wider and more regu-larly arranged. Moitessieria foui Boeters, 2003 has a conical shell and a microsculpture formed by spirally arranged pitting in the teleoconch and irregularly arranged papillae. Moitessieria garrotxaensis Quiñonero-Salgado & Rolán, 2017 has a bigger and slender shell, with to 2 mm in height, and a similar microsculpture. However, some differences can be seen in the protoconch, formed by spirally arranged tubercles, while in M. pesanta sp. n. these cords can fuse with each other, for-ming oblique lines. Moitessieria juvenisanguis Boeters & Gittenberger, 1980 is slightly larger and wider in the last whorls. Protoconch microsculpture consists of tubercles grouped and spirally oriented, lacking the spiral lines of M. pesanta sp. n. Teleoconch microsculpture is almost reticulated for M. juvenisanguis, with spiral lines crossed by prominent growth lines, while in M. pesanta sp. n. spiral sculpture domains. Aperture of M. juvenisanguis has deeper subtural notch, and outer lip is quite expanded from shell outline. Moitessieria massoti Bourguignat, 1863 has a more 107NEMUS núm. 9. 2019, pàg. 105 - 111S. Quiñonero-Salgado & E. RolánA new species of the genus Moitessieria (Gastropoda) from CataloniaFIGURE 1. A-G: Moitessieria pesanta sp. n. A-B: shell; C-D: detail of the microsculpture of the teleoconch. E-G: protoconch and details of the microsculpture.A-G: Moitessieria pesanta sp. n. A-B: conquilla; C-D: detalls de la microescultura de la teleoconquilla. E-G: protoconquilla i detalls de la microescultura.A B CD EFGS. Quiñonero-Salgado & E. Rolán A new species of the genus Moitessieria (Gastropoda) from Catalonia108 NEMUS núm. 9. 2019, pàg. 105 - 111FIGURE 2. A-B: Moitessieria pesanta sp. n. A: holotype. B: paratypes.A-B: Moitessieria pesanta sp. n. A: holotip. B: paratips.AB109NEMUS núm. 9. 2019, pàg. 105 - 111S. Quiñonero-Salgado & E. RolánA new species of the genus Moitessieria (Gastropoda) from Cataloniaslender and elongated shell, slightly less convex whorls, and closed umbilicus. While teleoconch microsculp-ture is similar, the protoconch microsculpture of M. massoti is weak, contrasting with the strongest one of M. pesanta sp. n.Moitessieria mugae Corbella et al 2006 has a more turriculated and elongated shell. Its protoconch has no ornamentation, and teleoconch is formed by a little marked mesh of quadrangular depressions. Moitessieria olleri Altimira, 1960 has a more slender shell, growing slightly more than 2 mm, with subcylin-drical to almost conicocylindrical shape. Differences in microsculpture are also evident by a teleoconch formed by a reticulum of quadrangular depressions, highly dense and a protoconch with mild spiral crests, and sporadic papillae.Moitessieria racamondi Callot-Girardi, 2013 has a larger shell with higher number of whorls, oblique aperture, and umbilicus limited to a tight slit. Proto-conch microsculpture consists of tight, fine spiral lines, mostly continuous, some formed by aligned small tubercles. In M. pesanta sp. n. these lines are crossed by small oblique lines, irregularly arranged.Moitessieria servaini (Bourguignat, 1863) has a more elevated conicocylindrical shell, and also some diffe-rences in microsculpture, since teleoconch is formed by rounded pitting, and protoconch is formed by moderately marked ornamentation, formed by spiral cords and spirally arranged papillae, less evident in the first than in the second whorl. Moitessieria spp. in the hydrological basin of the Fluvià river.Moitessieria pesanta sp. n. inhabits the hydrolo-gical basin of the Fluvià river, where two other spe-cies are also described: Moitessieria garrotxaensis and Moitessieria sp. This latter was originally cited by Haas (1929) in the font de la Cirera, at Hostalets d’en Bas (Girona province), as Moitessieria rolandiana Bour-guignat, 1863. However, a posterior revision of the original material, housed at Museu de Ciències Natu-rals de Barcelona, showed that this species is not in fact M. rolandiana, (Alba et al., 2011). Given its unk-nown status, it could represent either M. garrotxaensis, the newly described M. pesanta sp.n., or even as a yet to be described species, so it should still be cited as Moitessieria sp.FIGURE 3. Water canal near font de les Molleres (Sant Joan les Fonts, Girona), type locality of Moitessieria pesanta sp. n.Canal d’aigua pròxim a la font de les Molleres (Sant Joan les Fonts, Girona), localitat tipus de Moitessieria pesanta sp. n.S. Quiñonero-Salgado & E. Rolán A new species of the genus Moitessieria (Gastropoda) from Catalonia110 NEMUS núm. 9. 2019, pàg. 105 - 111Discussion and conclusionsThough genitalia study or even DNA analysis have become widely used in recent years for the descrip-tion of new species of molluscs, it is still quite difficult to find live samples of some stygobiotic genera such as Moitessieria, which may only be found after heavy rains, when the phreatic level rises and some samples can pass outside. However, no live specimens were recovered in the sampling at the type locality, so the description of the new species relied necessarily on empty shells. In Spain, this genus is present in Navarra, Aragón, Comunitat Valenciana and Catalonia, this last being the community were more species have been described, many of them with quite limited known distribution.Regarding the conservation of the new species here treated, known from a single locality, some actions should be taken: avoiding any potential damage to the aquifer or the spring itself, the major threat being water pollution from farming activities.FIGURE 4. Shell measurements of Moitessieria pesanta sp. n. SH: shell height. SW: shell diameter. BWH: last whorl height. PH: aperture height. PW: aperture width. Dimensions de la conquilla de Moitessieria pesanta sp. n. SH: alçada. SW: diàmetre. BWH: alçada de l’última volta. PH: alçada de l’obertura. PW: amplada de l’obertura.TABLE 1. Measurements of the shells of Moitessieria pesanta sp. n. SH: shell height. SW: shell diameter. BWH: last whorl height. PH: aperture height. PW: aperture width. See also Fig. 4.Mesures de la conquilla de Moitessieria pesanta sp. n. SH: alçada. SW: diàmetre. BWH: alçada de l’última volta. PH: alçada de l’obertura. PW: amplada de l’obertura. Cal veure també la Fig. 4.SH SW PH PW BWHMoitissiera pesanta HOLOTYPE 1,4 0,58 0,4 0,26 0,71(n=21) min 1,22 0,54 0,37 0,26 0,65max 1,58 0,69 0,48 0,4 0,79mean 1,388 0,610 0,410 0,324 0,722st.dev. 0,093 0,042 0,028 0,029 0,041111NEMUS núm. 9. 2019, pàg. 105 - 111S. Quiñonero-Salgado & E. RolánA new species of the genus Moitessieria (Gastropoda) from CataloniaBibliographyAlba, D. M, Tarruella, A., Prats, L., Guillén, G & Corbella, J. 2011. Nova llista actualitzada dels mol·luscos continentals de Catalunya. Spira, 4 (1-2), 39-69.Alba, D. M., Corbella, J., Prats, L., Guillén, G & Tarruella, A. 2013. Chonchological characterization of Moitessieria foui Boeters, 2003 (Gastropoda; Moitessieriidae). Spira, 5 (1-2): 91-98.Alba, D. M., Corbella, J., Prats, L., Tarruella, A. & Guillén, G. 2007. Una nova espècie del gènere Moitessieria Bourguignat, 1863 (Neotaenioglossa: Rissooidea: Moitessieriidae) de la Font de la Barrinà (Horta de Sant Joan, la Terra Alta, Catalunya, Espanya). Spira, 3 (2): 127-137. Altimira, C. 1960. Notas malacológicas. Contribución al conocimiento de los moluscos terrestres y de agua dulce de Cataluña. Miscel·lania Zoologica, 1: 9-15.Bertrand A. 2001. Moitessieria fontsaintei sp. nov. (Gastropoda : Prosobranchia : Moitessieriidae) des Pyrénées ariégeoisesa. Documents Malacologiques, 2: 39-41.Boeters, H. D. 2003. Supplementary notes on Moitessieriidae and Hydrobiidae from the Iberian Peninsula (Gastropoda, Caenogastropoda). Basteria, 67: 1-41.Boeters, H. D. & Gittenberger, E. 1990. Once more on the Moitessieriidae (Gastropoda Prosobranchia), with the description of Clameia brooki gen. et spec. nov. Basteria, 54, (1-3): 123-129.Callot-Girardi, H. 2013. Moitessieria racamondi sp. nov., nouvelle espèce de la résurgence de Font Dame, et Moitessieria juvenisanguis Boeters et Gittenberger, 1980 (Gastropoda: Moitessieriidae), nouvelle présence à la source du lavoir (Salses-le-Chateau, Pyrénées-Orientales, France). Spira, 5: 1-2.Corbella, J., Alba, D. M., Tarruella, T., Prats, L. & Guillem, G. 2006. Dues noves espècies del gènere Moitessieria Bourguignat, 1863 (Neotaenioglossa: Rissooidea; Moitessieriidae) de la Font d’en Colell (Albanyà, l’Alt Empordà, Catalunya, Espanya). Spira, 2 (2): 71-111.Corbella, J., Guillén, G., Prats, L., Taruella, A. & Alba, D. M. 2011. Els moitessièrids de la Font de Sant Cristòfol (Santa Eulàlia de Ronçana, el Vallès Oriental, Catalunya, España). Spira, 4(1-2): 25-38.Corbella, J., Guillén, G., L., Tarruela, A. & Alba, D. M. 2012. Els Moitessieriidae (Gastropoda: Rissooidea) de Les Deus de Sant Quintí de Mediona (l’Alt Penedès, Catalunya, Espanya). Spira, 4(3-4): 121-138.Haas, F. 1929. Fauna malacológica terrestre y de agua dulce de Cataluña. Treballs del Museu de Cienciès Naturals de Barcelona, 13: 1-491.Tarruella, A., Alba, D. M., Prats, L., Guillén, G. & Corbella, J. 2008. Caracterització conquiliològica i noves dades de distribució de Moitessieria olleri Altimira, 1960 (Neotaenioglossa: Rissooidea: Moitessieriidae). Spira, 4 (2): 223-262).Tarruella, A., Corbella, J., Guillén, G., Prats, L. & Alba, D. M. 2013. Moitessieria ripacurtiae sp. nov. (Gastropoda: Moitessiriidae), una nova espècie de gastròpode estigobi del Pont de Suert (l’Alta Ribagorça, Catalunya, Espanya). Spira, 5 (1-2): 15-26.Tarruella, A., Corbella, J., Prats, L., Guillén, G., & Alba, D. M. 2012. Una nova espècie de Moitessieria (Gastropoda: Moitessieriidae) del Forat de l’Or (Camarasa, La Noguera, Catalunya, Espanya). Spira, 4(3-4): 109-119.Tarruella, A., Corbella, J., Prats, L., Guillén, G. & Alba, D. M. 2015. Els moitessièrids (Gastropoda: Moitessieriidae) de Monistrol de Montserrat (El Bages, Catalunya, España). Spira, 5: 163-180.Quiñonero-Salgado, S. & Rolán, E. 2017. Two new species of the genus Moitessieria (Gastropoda: Moitessieriidae) from Spain. Iberus, 35 (2): 115-121.Acknowledgements. We thank Henri Girardi for sending samples for comparative purposes, Alvaro Alonso for his help in with the figures and translation and to Inés Pazos for the SEM photographs taken at the Centro de Apoyo Científico y Tecnológico a la Investigación (CACTI) of the University of Vigo. Also to Joaquín López Soriano and Jordi Cadevall for revision of the manuscript, and to Jordi Corbella Alonso for valuable help and collaboration.Rebut el 26.07.19. Acceptat el 18.09.19.

Espècie nova del gènere Moitessieria (Gastropoda: Moitessieriidae) per a Catalunya, Espanya

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Espècie nova del gènere Moitessieria (Gastropoda: Moitessieriidae) per a Catalunya, Espanya

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