Ectoprocta

18 p. : ill. ; 24 cm.Includes bibliographical references (p. 17-18)

Zoology Made Simple : A Comprehensive Cource for Self-study and Review

191 hal,;ill,;27 c

Spathipora, its anatomy and phylogenetic affinities

Spathipora and Terebripora are compared for the first time, and were found to have very close anatomical affinities. This confirms the placement of these two genera into the family Terebriporidae by Marcus (1938). The genus Immergentia has been placed into the supra-family Arachnoidea by Jebram (1973). This placement may be justified in that Immergentia lacks a gizzard and has a unique apertural attachment to the stolon. Soule and Soule (1969) suggested the removal of Penetrantia from the ctenostomes into the Cheilostomata Anasca. The finding of cheilostome homologies in the Penetrantia apertural-opercular apparatus, and the discovery of the presence of type I vestibular glands similar to those reported by Lutaud (1964) in Membranipora strongly supports the cheilostome affinity. The expanded cardial region, "gizzard", of the Penetrantia digestive tract appears to have its counterpart in some of the Cheilostomata.Pour la première fois les genres Spathipora et Terebripora sont comparés et les affinités anatomiques sont très proches. Ceci confirme le placement de ces deux genres dans la famille des Terebriporidae par Marcus en 1938. En 1973, Jebram a placé le genre Immergentia dans la superfamille des Arachnoidea. Cette position peut être justifiée par le fait qu'Immergentia n'a pas de "gésier" mais seulement une liaison aperturale avec le stolon. En 1969 nous avons suggéré de placer Penetrantia parmi les Cheilostomes Anasca. L'appareil apertural et operculaire de Penetrantia similaire à celui des cheilostomes, et la découverte de la présence de glandes vestibulaires de type I semblables à celles décrites par Lutaud (1964) dans les Membranipora sont deux faits qui sont en faveur de l'affinité avec les cheilostomes. L'appareil digestif ou "gésier" de Penetrantia semble avoir son équivalent dans quelques cheilostomesSoule J. D., Soule Dorothy F. Spathipora, its anatomy and phylogenetic affinities. In: Documents des Laboratoires de Géologie de la Faculté des Sciences de Lyon. Hors série n°3, 1975. Bryozoa 1974 – Proceedings of the third Conference International Bryozoology Association – Lyon (fasc. 1) pp. 247-254

Species groups in Watersiporidae (Bryozoa Cheilostomata)

Watersiporids from the Caribbean, Atlantic, Mediterranean, Red Sea, Indian Ocean, western Pacific, mid-Pacific, eastern Pacific and Gulf of California were examined and compared by scanning electron and light microscopy. Differences in apertural form and size, in surface areas of zooecia and of apertures, and in frontal walls were determined. Morphogenesis of apertures, distal walls and communication pores was observed. Validity of Watersipora subtorquata (d'Orbigny), W. cucullata (Busk) and W. atrofusca (Busk) is verified, but the identity of W. subovoidea is questioned.Plusieurs espèces de Watersiporidae provenant des Caraïbes, de l'Atlantique, de la Méditerranée, de la Mer Rouge, de l'Océan Indien, du Pacifique Ouest, Est et médian, du golfe de Californie ont été examinées et comparées à l'aide du microscope électronique à balayage et du microscope optique. Des différences dans la forme et la taille des apertures, dans les surfaces zoéciales et aperturales, et dans les parois frontales ont été déterminées. La morphogenèse des apertures, des parois et des pores de communication a été observée. La validité de Watersipora subtorquata (d'Orbigny), W. cucullata (Busk) et W. atrofusca (Busk) est vérifiée mais l'identité de W. subovoidea est remise en question.Soule D. F., Soule John D. Species groups in Watersiporidae (Bryozoa Cheilostomata). In: Documents des Laboratoires de Géologie de la Faculté des Sciences de Lyon. Hors série n°3, 1975. Bryozoa 1974 – Proceedings of the third Conference International Bryozoology Association – Lyon (fasc. 2) pp. 299-310

Morphology and speciation of Hawaiian and eastern Pacific Smittinidae (Bryozoa, Ectoprocta). Bulletin of the AMNH ; v. 152, article 6

p. 367-440 : ill., maps ; 27 cm.Includes bibliographical references (p. 437-440)."Smittinidae (Bryozoa, Ectoprocta) from Hawaiian waters are compared with related species from the Galapagos Islands, Gulf of California, central and southern California in the eastern Pacific. Twenty-eight taxa are recognized, as follows: Hemismittoidea corallinea, new genus, new species; H. osburni, new species; Pleurocodonellina lahainae, new genus, new species; Smittoidea pacifica, new species; Smittina kukuiula, new species; one species of Codonellina and 22 species of Parasmittina, 15 of which are new. Scanning electron microscopy revealed many morphological and developmental details distinguishing the species and higher taxa. Distribution records in Hawaiian waters show isolation not only at the specific level from the Indo-Pacific and coastal eastern Pacific but also inter-island isolation due to unknown environmental factors"--P. 369

Faunal affinities of some Hawaiian Bryozoa (Ectoprocta)

Volume: 35Start Page: 265End Page: 27

The Ectoprocta (Bryozoa) of Scammon's Lagoon, Baja California, Mexico. American Museum novitates ; no. 2199

56 p. : ill., 2 maps ; 24 cm.Includes bibliographical references (p. 50-56)."Thirty-seven species of Ectoprocta representing 17 families are reported in the present collection from Scammon's Lagoon, Baja California, the first bryozoan collection reported from this region. Seventeen of the species had not previously been recorded from the Pacific coast of Baja California. One new species, Schizoporella occidentalae, is described. One new genus is erected, Alismittina, for Smittia californiensis Robertson, 1908, which has been rediscovered on the Pacific coast after having been unreported for more than 50 years. (Smittia is preoccupied.) The generic description of Hippopodinella Barroso, 1924, is emended to include: occasional small avicularia on the frontal or around the aperture. These are present on the type species of Lepralia adpressa Busk, 1854, now Hippopodinella adpressa. Rhynchozoon tumulosum has been synonymized under Rhynchozoon rostratum, and Holoporella quadrispinosa has been placed in synonymy with Holoporella brunnea. Clarification of the status of Hippoporella gorgonensis and Aimulosia uvulifera is undertaken. The distributional pattern of the species represented in the collection indicates that 48.6 per cent are tropical in occurrence, 37.1 per cent are also found in warm temperate waters, and 14.3 per cent also occur in cool temperate waters. Since many of the species are found in more than one zone, these figures should not be interpreted as indicating species that are restricted specifically to each area. This pattern is closely comparable to that of the ectoprocts found between Cabo San Lucas and Magdalena Bay on the west coast of Baja California, rather than to the assemblages immediately adjacent to Scammon's Lagoon"--P. 50