64 • TIARID.E, — LITTORNID^. 



130. Paludomus (Stomatodon) stomatodon, Benson. 



Pabidomus {Stomatodon) stomatodon, Benson, A. M. N, H. ser. 3, 

 X, 18G2, p. 414 (as ? Tanalia) ; H. & T., C. I. pi. 108, fig. 1. 



Original description : — Testa ovato-globosa, solida, Iceviuscula 

 (juniorimi polita), sti'iis spiralibus obsoletis induta, olivaceo- 

 nigrescente ; spira brevi erosa, sutura impressa; aiifractibus 3 

 superstitibus, superioribus convexiusculis, ultimo convexo ; 

 apertura ovato-aciita, albida, intiis denium angustiore, siuuata ; 

 peristomate integro, inargiue dextro basalique acuto, columellari 

 late calloso, infra latiore, subito intus truucuto, dente prominente 

 crasso mimito. 



Ait. 14, diam. 12 mm. 



Hah. Mountain streams near Cottyam, Travancore. 



" . . . . Tliere is some resemblance in this shell to Neritina^ for 

 which genus a specimen might, on a cursory glance, be taken. 

 The upper part of the columellar callosity exhibits in some 

 specimens a blackish-brown tint, and a patch of the same colour 

 may occasionally be observed at the base, in the interior of the 

 aperture, the throat of Mhich is tinged with violet and purple and 

 presents a minutely corrugate surface." 



Family LITTORNID.*:. 

 Subfamily CREMNOCONCHIN.^. 



Shell ovate, depressedly turbinate, with large aperture. 

 Distrihation. 8. Asia. 



Genus CREMNOCONCHUS. 



Cremnobutes. Blanford, A. M. N. H. ser. o, xii, 1863, p. 184. 

 Crejnnoconclms, Blanford, A. M. N. II. ser. 4, iii, 1869, p. 343. 



Type, C. syhadrensls, Blanford ; Western India. 



Bange. "W.India; Tonkin. 



Ori(/inal description : — Testa perforata, turbinato - globosa, 

 costulata. Apertura mediocris, subovata ; peristomatis margine 

 dextro simplici, columellari vix calloso. 



Operculum testaceum, subovatum, paucispirale ; nucleo sinistro ; 

 margine membranaceo. 



Animal (pulmonii'erum ?) parvum ; tentaeulis duobus brevibus 

 subulatis, oculos in lobis tumidis ad basin gerentibus prjeditum. 



Pes brevis, rotundatus. Proboscis brevis. 



