Coccoglypta Pilsbry, 1895

Páll-Gergely, Barna, Hunyadi, András, Chen, Zhe-Yu & Lyu, Zhi-Tong, 2019, A review of the genus Coccoglypta Pilsbry, 1895 (Gastropoda: Pulmonata: Camaenidae), Zoosystema 41 (29), pp. 595-608 : 597-598

Genus Coccoglypta Pilsbry, 1895

Eulota (Coccoglypta) Pilsbry, 1895: 211 .

Coccoglypta – Yen 1939: 153. — Schileyko 2004: 1678-1679, fig. 2164.

TYPE SPECIES. — Helix pinchoniana Heude, 1886 , by monotypy.

DIAGNOSIS. — Shell dextral, depressed-conical, with 5-6 slightly convex whorls; body whorl rounded or slightly keeled; colour yellowish to greenish and light brown; protoconch without notable sculpture, seemingly smooth, or slightly pitted or “hammered”; teleoconch with irregular, rough wrinkles and strong tubercles, occasionally with fine spiral grooves; sculpture on ventral surface sometimes weaker than on dorsal side; aperture rounded to suboval, strongly oblique to shell axis; peristome expanded but not reflected; parietal callus weak, only indicated by fine whitish calcareous layer; umbilicus open, moderately wide to rather narrow, shows all whorls. Penis cylindrical or flattened, moderately long, internally with fine longitudinal pilasters or reticulated sculpture; no epiphallus observed; vas deferens slender, retractor muscle attached on the junction of penis and vas deferens; vagina short, internally with widely-spaced, sometimes converging longitudinal folds; stylophore of moderate size, accessory sac of about same size and shape, each of two alveolar; mucus glands large, distinct or forming a single gland mass, entering accessory sac independently; spermathecal stalk extremely long, bursa oval, small.

REMARKS

Coccoglypta was erected as a section of Eulota W. Hartmann, 1841 for two species, namely “ Helix dimidiata Heude ” and “ Helix pinchoniana Heude ”. Pilsbry (1895) designated the former species as the type species. Heude, however, has never described a species with the name dimidiata (see Johnson 1973). Yen (1939) and Zilch (1959 -1960) corrected this mistake and clarified type species of Coccoglypta as Helix pinchoniana Heude, 1886 .