HELIX.— Plate XXX. 



flat, the last suddenly detlcctcd at the aperture; 

 aperture horizontal, ellipticiil ; lip slightly thiekened, 

 with the luari^us joiDcd In a thin callosity, basal 

 margin reflected, arched towards the umbilicus, which 

 is large and open. 



Pfeifper, Pro. Zool. Soe. 1845, p. 40. 



Hab. Islands of Zebu and Luzon, Philipjjines ; Cuming. 



This approaches very nearly to some varieties of //. pla- 

 nulata, but is apparently distinct. 



Species 131. (Mus. Cuming.) 



Helix scrobicclata. Hel. tettd umiilicala, len/iculari, 

 tenui, oblique rugoiid,J'utvulo-aU}idd,fusco-zonatd, cari- 

 natd, bail lineu minutimmU concentricis ornaid; tpird 

 parum elatd, apice obluao, nilido, glabra ; sulurd 

 lineari ; an/raclibiis qualuor ad quinque, convexim- 

 culu, ultimo anlice angulalim d^iexo, ba»i prope aper- 

 luram gibboso-iiiflalo ; carina tubacutd ; umbilico an- 

 giuto, perviu ; aperturd Iraiiacerti pyriformi ; peristo- 



mate timplici, continuo, supertie expanio, ban late 

 reflfxo, unidentato ; dente obtuso, extut icrobiculum 

 formante. 

 The Fi'RROWED Helix. Shell umbilicatcd, Icntieidar, 

 thill, obliquely rugose, fulvous-white, zoneil with 

 brown, keeled, marked at the base with minute con- 

 centric lines ; spire but little raised, apex obtuse, 

 shining, smooth ; suture linear ; whorls four to live, 

 rather convex, the last angularly deflected anteriorly, 

 gibbously inflated at the base near the aperture ; 

 keel rather sharp; umbilicus naiTow, open ; ajHTture 

 transversely pear-shaped ; lip simple, continuous, 

 expanded at the upper part, broadly reflected at 

 the base, one-toothed : tooth obtuse, forming out- 

 wardly a furrow. 



Pfeiffer, Pro. Zool. Soc. 1842, p. 88. 



Uab. Island of Bohol, Philippines ; Cuming. 



Allied in some measure to U. rota, but wanting in the 

 peculiar crisped wrinkles and crimped keel which charac- 

 terize that species. 



