Taxonomy based on science is necessary for global conservation

Conservation Biolog

Anisospira velascorum, a new land snail from Mexico, with notes on the anatomy and histology (Mollusca, Gastropoda, Urocoptidae)

During a collecting trip through southern and central Mexico (Breure, 1974) special attention has been paid to Bulimulidae and Urocoptidae. Among the material of urocoptids a new species has been found. Anisospira velascorum sp. n. (figs. 1-10, pl. 1) Description. — Shell up to 30.5 mm, 2.39 times as long as wide, rimate, with rather convex sides; cylindrical; solid. Colour reddish-brown. Surface slightly shining, with numerous fine riblets, which are slightly recurved and equally spaced over the surface of the shell. Riblets about (half) as broad as the intervals, with 5-6 riblets/mm on the antepenultimate whorl. Decollate; adult shell with 7 whorls, moderately convex; first three whorls of adult shell rapidly increasing in width, other whorls nearly cylindrical, but last whorl usually more slender. Suture well impressed. Aperture broadly ovate, usually adnate, as long as wide, 0.23 times the total length. Peristome moderately thickened, narrowly reflexed, whitish. Axis with two smooth spiral lamellae, confined to the last 11/2 whorl. One lamella just above floor of whorl, blade- to cord-like; the second lamella, which is less developed and absent in some specimens, is located near the middle of the axis (fig. 2). Genitalia. — The genitalia of this species correspond to the general description for those of Anisospira given by Thompson (1968: 149), but the epiphallus originates below the apex of the penis (fig. 10) and is ca. 7 times as long as the penis. Genital atrium. The lumen is elongate with infoldings, and lined with a cubic epithelium (cell height 5 μm). The subepithelial tissue is made up by loose connective tissue in which some light blue (with Alcian Blue; hereafter indicated as AB) staining cells are dispersed. At the peripher

Notes on and descriptions of Bulimulidae (Mollusca, Gastropoda), II

The following new taxa are described: Drymaeus ( Drymaeus) cleefi, Drymaeus (Drymaeus) palassus and Drymaeus (Drymaeus) yapacanensis. The variation in the size of the sculpture of the protoconch is analyzed and two groups, which roughly correspond to the subgenera Drymaeus and Mesembrinus, are distinguished. Furthermore the variation in the mandibula and radula of 46 species is analyzed. Anatomical data are presented for 52 species and four species are redescribed

From the shadows of the past: Moricand senior and junior, two 19th century naturalists from Geneva, with their newly described taxa and molluscan types.

uploaded for Revue Suisse de Zoologie by Plaz

Bibliography of Cuban terrestrial Mollusca, including related and biohistorical papers on Cuban malacology

This paper presents a comprehensive overview of literature on Cuban terrestrial molluscs since the 18th century. It currently cites approximately 1000 references, dealing with a) primary and secondary sources directly treating Cuban taxa or relevant for the study of the Cuban malacofauna; b) abstracts of congresses, unpublished theses, and internal reports ('grey literature'); and c) biohistorical papers dealing with the life and work of Cuban malacologists. To provide some context, we also give brief overviews of Cuban and non-Cuban authors and journals issued on the island relevant for Cuban malacology

Case 3748 — Bothriembryon Pilsbry, 1894 (Mollusca, Gastropoda, Bothriembryontidae): proposed conservation of the name by designation of Helix melo Quoy & Gaimard, 1832 as the type species of Liparus Albers, 1850

The purpose of this application, under Article 67.2 of the Code, is to conserve the current usage of the generic name Bothriembryon Pilsbry, 1894, a well-established genus of land snail endemic to the southern half of Australia and whose name has been used consistently for over a century. Bothriembryon is a replacement name for Liparus Albers, 1850, a junior homonym of Liparus Olivier, 1807 (Coleoptera), and automatically takes its type species (Article 67.8). The name is threatened by a change in the type species of Liparus. Although no type species was originally designated for Liparus Albers, 1850, the two species originally included in Liparus are currently placed in genera of different families. Pilsbry (1894) designated Helix melo Quoy & Gaimard, 1832 as the type species for the replacement name Bothriembryon, but it is invalid as it is not one of the originally included species. Acceptance of either of the originally included species in Liparus would mean the synonymy of Bothriembryon with either Pygmipanda Iredale, 1933 (type species Bulimus atomatus Gray, 1834 by original designation) or Leucotaenius Albers & Martens, 1860 (type species Bulimus favannii Lamarck, 1822 by original designation), respectively. To promote nomenclatural stability, it is proposed that all type species fixations for the genus Liparus Albers, 1850 be set aside, and to designate Helix melo Quoy & Gaimard, 1832 as the type species

Agrocentrum Westpoort: utopie of innovatie? : reflecties en leerpunten rond een systeeminnovatief project

Ervaringen en reflecties rond een agropark in wording (Amsterdam). De Westpoort is een stedelijk ontwerp gericht op intensieve veehouderij, glastuinbouw die ruimtelijk bij elkaar gebracht worden: een innovatieve stadsboerderij, aldus de inleiding van dit rapport, dat voortborduurt op een eerdere publicatie (De Wilt, 2000