MOLLTJSCA OP THE * CHALLENGER ' EXPEDITION. 325 



Fam. Cancellaeiid^, ^ffowi^. 

 Cancellaeia, Lam. 



1. Cancellaria imbricata, n. sp. I 3. Cancellaria {Adniete) carinata, 



2. C. (Admete) specularis, n. sp. | n. sp. 



1. Cancellaeia imbeicata, u. sp. 



St. 142. Dec. 18, 1873. Lat. 35° 4' S., long. 18^ 37' E. 

 Off Cape of Grood Hope. 150 fms. Saud. Bottom tempera- 

 ture 47°. 



SJiell. — Oval, with a smallish, high, subscalar, blant spire, a 

 semicircular mouth, and a rough spirally striated surface ; yel- 

 lowish white. Sculphcre. Longitudinals — on the upper whorls 

 there are some slight rather distant ribs, which pass over on the 

 later whorls into rough imbricated adpressed laminee covering the 

 whole surface. Spirals — there are ilatly rounded threads parted 

 by intervals of twice their breadth ; below the suture 2 are feeble, 

 4 in the middle are strong, 5 on the base are narrow and sparse, 

 and 5 to 6 on the snout are slight and close : besides these, there 

 are minute spirals and lines of growth which reticulate crisply 

 the whole surface. Colon,)' porcellaneous white beneath a yel- 

 lowish surface, which is quite stripped of epidermis. Spire high, 

 rather small, conical, subscalar. Apex blunt and globose, con- 

 sisting of 1| rounded embryonic whorls, of which the extreme tip 

 is very much depressed on one side. Whorls 5 in all, well 

 rounded, the earlier small and of slow increase, the last large, 

 with a short base and a small snout. Suture impressed. Mouth 

 rather large, semicircular. Outer lij) regularly rounded and open, 

 strongly seamed within by the spirals of the surface. Inner 

 lip: a very thin glaze spreads broadly over the body, but nar- 

 rows and thickens on the small hollowed and twisted pillar, leaving 

 a very minute chink in front ; there are below the middle of the 

 pillar two strongisb, very oblique white teeth; and the twisted 

 edge of the pillar is prominent and sharp. H. 0'8. B. 0'5. 

 Penultimate whorl, height 0-16. Mouth, height 0-46, breadth 0-3. 



The specimen of this species is perhaps not quite full-growu. 

 The whole aspect of the shell suggests an Admete ; but the teeth 

 on the pillar are stronger than is usual in that group. It is much 

 shorter in the spire, broader in the whorls, and more delicately 

 sculptured than G. furrita, Sow. 



2. Cancellaeia (Admete) speculaeis, n. sp. 



St. 149 b. Jan. 17, 1874. Lat. 49° 28' S., long. 70° 30' E. 

 Near entrance of E.oyal Sound, Kergueieu. 30 fms. Mud. 



