158 Mr. E. A. Smith on Mollusca from the 



close West-Indian and Atlantic representatives in A. Dalli 

 and A. lucidum ; and Dentaliura prqiundorum, from 675 

 fathoms, and Limopsis indica, from 142-400 fathoms, are 

 respectively only slight modifications of I), capillosum and 

 L. peJagica, from the depths of the Atlantic. 



A few forms of Dentalium are known, the shells of which 

 are not regularly tubular. In D. ensiculus, Jeffreys, the shell 

 is much compressed, and in D. compressum, Sowerby, a hand- 

 some Japanese species, in section it is oval. D. insolitum of 

 the present collection is also remarkable on account of its 

 irregularity in this respect; the two sides are a little flat- 

 tened and slope or converge somewhat towards the excurved 

 side, which is more convex than the opposite side. The two 

 Pleurotomids, from 675 and 1043 fathoms, are also worthy of 

 special attention, as they have quite the appearance of northern 

 forms or inhabitants of cold regions, having the whitish 

 chalky surface of some of the boreal Buccinids and 

 Chrysodomi. 



In addition to the species now enumerated and described, 

 the following, also from dredgings of the ' Investigator,' have 

 already been characterized as new : — 



1. Rostellaria delicatula, Nevill, 1881, 



2. Solariella metalica, Wood-Mason and Alcock, 1891. 



3. Pleurotoma symhiotes^ iid. 



4. Verticordia [Euciroa) ehurnea^ iid. (= V. optima^ 



Sowerby, 1894). 



5. Nucula {Acila) Fultoni, Smith, 1892. 



6. Syndesmya maxima^ Sowerby, 1894. 



7. Glauconome sculpta^ Sowerby, 1894. 



The types of the species, hereafter described, will be 

 deposited in the Indian Museum at Calcutta ; but one or more 

 representatives of each have been retained, by permission, 

 for the National Collection in the Natural History Museum 

 at South Kensington. 



1. Conus australis, Chemnitz. (PI. III. fig. 1.) 



Conus australis, Chenm., Reeve, Conch. Icon, vol, i. pi. iv. fig. 49 ; 

 Sowerby, Thes. Concli. vol. iii. pi, ccvi. fig. 486 ; Kiener, Coq. Viv. 

 pi. xli. tig. 2. 



Hah. Swan Eiver (Reeve) ; Australia, Moluccas {Tryon) ; 

 China {coll. Cuming, and Soicerhy for C. laterculatus) ; off 

 Malabar coast, lat. 11° 05' 45'^ N., long. 75° 04 08" E., in 

 36 fathoms {^Investigator''). 



C. gracilis^ C. duplicatu.'tj and C. laterculatus, all of 

 Sowerby, are synonyms of this species. The Malabar 



