MOLLTJSCA OP THE ' CHALLEKGER ' EXPEDTTIOIS". 361 



conical whorls. WJiorls 10, rounded, constricted below and con- 

 tracted above ; the last is a little tumid, with a short rounded base, 

 which is produced into a short, broad, lop-sided scoop-like snout. 

 Suture small, impressed, rather oblique. Mouth irregularly oval, 

 pointed above, subangulated at the pillar, and produced in front 

 into the short, open, oblique canal. Outer lip thickened bj the 

 external callus, in advance of which it is thin ; within, it is scored 

 with long narroAV teeth ; there is a slight open sinus near the body, 

 its curve is a little angulated in front, from which point in parti- 

 cular it is patulous ; the broad notch of the canal has a slightly 

 reverted lip. Inner lip flat on the body, bluntly angulated at the 

 base of the short pillar, which is swoln and twisted in front, and 

 coarsely flanged on the edge ; the extreme point of the pillar 

 is very small and sharp, and is as prominent as the point of 

 the outer lip ; the labial pad is very thin and undefined. H. 1. 

 B. 0-5. Penultimate whorl, height 0-2. Mouth, height 0'5, 

 breadth 0-27. 



The extreme tip of the apex in the only specimen present is 

 broken. The species presents that feature which is peculiar to 

 the whole genus, of strong family resemblance, but is quite distinct 

 from all the species so far as known to me. 



2. Phos bathtketes, n. sp. 



St. 210. Jan. 25, 1875. Lat. 9° 26' N., long. 123° 45' E. 

 Philippines. 375 fms. ITud. Bottom temperature 54<°'l. 



Shell. — Thinnish, porcellaneous, without lustre, brownish yellow, 

 with a high conical spire, small turbinated apex, short rounded 

 whorls having feeble ribs and spiral threads, deep suture, small 

 body-whorl, short contracted base, and a broad, deeply nicked 

 snout. Sculpture. Longitudinals — on the first regular whorl 

 there are 11 or 12, on the body-whorl about twice as many, 

 narrow, slightly prominent, rounded riblets, which extend from 

 the suture to the point of the base ; they have a sinistral trend, 

 which is very marked on the base ; they are parted by shallow 

 furrows two or three times their breadth; the lines of growth 

 are fine, sharp, and equal. Spirals — on the penultimate whorl 

 there are about 6, on the body about 12, narrow rounded threads, 

 which rise into sharpish little tubercles in crossing the riblets ; 

 the fourth of these lies about the periphery, and the furrow be- 

 tween it and the third is wider than the others; in all of these fur- 

 rows are feebler threadlets. The front of the pillar has a strong 



