SOWEKBT : CAEINAEIA. 



15 



Shell very depressed, with a very narrow keel, which is partly 

 immersed in a deep rut, bordered by a rounded elevation on the left 

 hand side. The nucleus consists of three smooth rounded whorls, 

 situated completely at the posterior extremity of the shell. Speci- 

 mens obtained by Captain Eudel in the Indian Ocean measure from 

 5 to 10mm. in length and 2i- to 6mm. in width. The animal is 

 described as 115mm. in length. 



6. Caedstakia punctata, D'Orbigny, Yoyage Amerique Meridionale, 

 vol. v., p. 160, pi. xi., figs. 6-15. 



Shell like that of C. Lamarckii. I have little doubt that the 

 specimen found in the voyage of the " Challenger," and mentioned 

 by Mr. E. A. Smith (Report of the Heteropoda, p. 37), belongs to 

 this species, the differences in the animal being only such as may 

 be accounted for by the fact of its being preserved in spirits. The 

 body is covered with little white tubercles and dots. D'Orbigny's 

 specimen was taken near Juan Fernandez. 



7. Caeinaeia cithara, Benson, Journ. Asiatic Society of Bengal, 

 vol. vi., p. 215, 1835. 



Carinaria depressa, Carinaria cithara, Carinaria galea, 

 Eang. Bens. Bens. 



Carinaria elata, 

 n.sp. 



The shell is very high and pyramidal, slightly inclined in the reverse 

 direction to the ordinary species, so that the keeled side is the shorter. 

 The nucleus, which is much like that of C. Lamarchii, is situated at 

 the top and very slightly inclined. The keel is rather broad, crossed 

 with nearly straight plicce. Height 9-1 0mm., length at the aperture 

 6-7mm. 



From Benson's description the animal must somewhat resemble that 

 of C. Atlantica, very narrow and cylindrical, hyaline, without any 

 very apparent asperities on the surface. Benson reports four specimens 

 (two without spire) of this species taken in the Indian Ocean between 

 Lat. S. 4° 30' and N. 4° 30', and Long. E. 87° 30' and AY. 90° 30'. 



The Ee^. A. H. Cooke kindly sent for my inspection the types of 

 this and the following species (now at Cambridge), from which I was 

 able with certainty to identify specimens of the shells which have 

 come into my hands collected by Captain Eudel in the Indian Ocean 

 in 1869-72. 



8. Caeinaeia Galea, Benson, Journ. Asiatic Society of Bengal, 

 vol. vi., p. 215, 1835. 



The shell of this species is not quite so high in proportion to the 

 length as the preceding ; it is elegantly incurved, and the nucleus is 



