New insights in Trichochloritis Pilsbry, 1891 and its relatives (Gastropoda, Pulmonata, Camaenidae)
Author
Pall-Gergely, Barna
Author
Neubert, Eike
text
ZooKeys
2019
865
137
154
http://dx.doi.org/10.3897/zookeys.865.36296
journal article
http://dx.doi.org/10.3897/zookeys.865.36296
1313-2970-865-137
EAD1EAB670BE48B187E9DBBFCBEA5EAD
B9F801F26CF95D06930D84AEAD5BC556
Trichochloritis (?) pseudomiara (Bavay & Dautzenberg, 1909)
Fig. 12
Helix (Chloritis) pseudomiara
Bavay & Dautzenberg, 1909a: 236; Bavay & Dautzenberg 1909b: 181, pl. VI, figs 5-8.
Trachia pseudomiara
:
Schileyko 2011
: 45.
Type specimens examined.
syntype MNHN-IM-2000-31774, Nat Son, leg. Messager, D: 24.3 mm, H: 13.3 mm.
Other specimens examined.
Muong-Hum, RBINS/1; Muong-Hum, leg. Messager 1908, RBINS/1; Tonkin, Phong-Tho, RBINS/1 (mixed sample with
Trichochloritis
sp.); Nat-Son, RBINS/3 (mixed sample with
Trichochloritis
sp.); Tonkin, leg. Messager, RBINS/22 (some of them are juveniles); Tonkin, Phong-Tho, NHMUK 1909.7.9.57/1 (photographed for the North Vietnamese Land Snail Guide); Tonkin, Muong-Hum, MNHN-IM-2012-27105/2; Vietnam, Cam Duong, MNHN-IM-2012-27106/2 (probably erroneous locality?); Tonkin, Phong-Tho, MNHN-IM-2012-27107/2; Tonkin, Muong-Hum, MNHN-IM-2012-27108/2; Tonkin, Muong-Hum, leg. Messager, MNHN-IM-2012-27109/2; Tonkin, MNHN-IM-2012-27110/1; Haut Tonkin, MNHN-IM-2012-27111/1.
Type locality.
Vietnam, N Vietnam: Nat Son.
Diagnosis.
A rather large, usually dark species with rounded body whorl, fine radial growth lines and deep hair scars; umbilicus open, only a small part of it is covered by the columellar reflection.
Description.
Shell rather large, almost flat, with relatively thick wall; body whorl rounded; last half whorl with or without very shallow subsutural furrow; the 4.75-5.25 whorls are separated by a shallow suture; colour greyish yellowish, or brown to olive green; protoconch consists of 1.5 whorls, finely granulate, with fine radial lines near the suture of the last half whorl; teleoconch finely, irregularly wrinkled, and covered with very deep hair scars, which are visible to the naked eye as well on the body whorl; hairs not permanent, although we did not have access to live collected specimens; aperture ovoid; peristome expanded and slightly reflected, and reinforced by a thickened whitish/light brown lip; parietal region with an inconspicuous layer, which is often darker than the rest of the shell; umbilicus widely open, concave and funnel-shaped, slightly covered by reflected peristome.
Measurements.
D = 21.3 -26.0 mm, H = 11.8-14.4 mm (n = 3).
Distribution.
This species is known only from the northernmost part of Vietnam, along the Chinese border.
Remarks.
This species can easily be identified based on the dark green-coloured shell and the deep, widely spaced hair scars that cover the entire teleoconch.