48 



SYK.ES : TWO CLAUSII.I^ FROM SANGIR AND SUMHAWA. 



ON TWO CLAUSILI/E FROM SANGIR AND 

 SUMBAWA. 



By E. R. SYKES, B.A., F.Z.S., 

 London. 



I HAYE recently had placed in my hands through the kindness of 

 Lieut-Col. Godwin-Austen, two s])ecies of Clausi/ia, collected by 

 Mr. Doherty. The one from Sumbawa is, I belicYe, new, and I now 

 describe it under the name of C. rccondiia. The other, which comes 

 from Sangir and the S. Celebes, is in my opinion a form of 

 C. inolucceusis, von Marts. ; the finding of it in Sangir extends the 

 specific range from the Molucca Is. and S. Celebes 

 somewhat to the north. It is perhaps worthy of 

 remark, as bearing on faunal relations, that the 

 Sangir form is more nearly allied to the Molucca Is. 

 form than to that from the Celebes, wliich, as 

 Prof Yon Martens has pointed out,' is less strongly 

 striated than the typical form from the islands which 

 give their name to the species : it may be the 

 variety niajuscnla, Tapparone-Canefri.- The Sum- 

 bawa shell, though a I^aidonenia, appears not to 

 be very nearly related to any Javan species ; the 

 deeper water which is entered on between Bali 

 and Lombock, on passing eastward from Java, 

 probably accounts for the difference. The following 

 is the description of C. recondita, which is chiefly 

 remarkable for its single plica palatal is and very 

 short plica principalis. 



Clausilia (Pseudonenia) recondita, sp. nov. 



Tcsla fiisi/on/iis, ^^raciiis temiiuscula, cornea, nitens ; ^pira 

 elongaio-turrita ; apex subaaitus, nan dccoUatiis. Anfr. lo-ii 

 plano-amvexit/sculi, lente accrescentes, sutura impressa, subtiliter 

 strialitli, ulfinius angustior i]uain antepenuliiniiis, \ aliituainis 

 testae uon ccquaiis. Apertura parva, piriformis, basi recediiis, 

 peristoma covttinuinii sohitiim, expaiisu/n, vix rejlcxuni, Icviter 

 i/icrassatitlui/i, albiditm. Lamella superior obliqiia, iiiai-ginalis ; 

 infej'ior obliqua, spiral iter recedens, superiori approxiinata. Plica 

 principalis bievis (2 inillim. approx.), plica palatalis u/iica, 



1 Von Martens in Max \Yel)er, Zool. Ergebn. Reise. Niederlnd. Ind. 1891, Bd. ii, p. 245. 



2 Ann. Mus. (lenoN. (iES;i), x\., p. 171. 



