10 SIR C. ELIOT. 



end. The shape of the lips is doubtful, owing to the injuries that they have 

 sustained. The anterior portion of the back seems to have been triangular. The 

 ventral surface is not re-entrant, but flattish and only slightly convex. The 

 dorsal surface is moderately convex. The anterior part is broken, but appears to 

 have borne a median ridge and four lateral ridges, which disappear in the posterior 

 half. The whole surface of the shell bears numerous fine transverse ridges. After 

 the termination of the animal inside, the shell is produced into a thin point 

 4 mm. long. The embryonic shell resembles Pelseneer's figure (I. c., pi. II., 9) of 

 Clio sulcata rather than Clio australis. 



The foot, wings and other portions of the animal protruded from the shell are 

 yellow, the viscera reddish. The wings are ample, about 6 mm. long and 5 mm. 

 wide, deeply bi-lobed and with wavy edges. 



The interior of the liver is deep red. The stomach contains four large plates, 

 bearing a conspicuous Y-shaped ridge on the outside. There also appears to be a 

 fifth plate, smaller* indistinct and triangular, as well as a double row of minute 

 plates. The radula is tri-seriate. The sides of the teeth are somewhat irregular 

 and indented, but not serrulated. 



I think that these specimens belong to the Clio sulcata of Pelseneer, I. c., but 

 feel some doubt whether that species is really identical with Pfeffer's Cleodora 

 sulcata. 



To the same species are probably referable a small Clio, to which fragments 

 of shell are attached and two posterior ends of shells, one of which bears 

 remarkably large and distinct transverse furrows. They are all labelled 

 27. 12. '01. 54 OU-' S. 170 49' E. 



CLIONE ANTARCTICA, E. A. Smith. 



See E. A. Smith, Coll. ' Southern Cross ' Mollasca (1902), p. 210, and pi. xxv., figs. 7, 8. See also 

 Meisenheimer on Clione Umacina, var. antarctica, in Sudpolar Expedition, Pteropoden (1906), 

 pp. 101-103. 



The labels state that the numerous specimens representing this form were all 

 captured at Winter Quarters in from three to ten fathoms, the great majority at 

 the latter depth. They fall into two classes, chiefly distinguished by their colour, 

 some being yellowish and generally well expanded ; others, brownish or greenish 

 grey, and much more contracted. These differences seem due to the method of 

 preservation rather than to natural variations, and the labels make it probable that 

 the yellowish specimens were killed with picric acid. 



The measurements of a large specimen are: length, 17 mm., breadth of the 

 body at its thickest part, 6 mm., breadth across the fins, 9 mm. The colour is 

 usually a pale lemon yellow (probably representing an original white), sprinkled 

 with round dots of opaque yellow. The number of dots varies greatly, but they 

 are entirely absent in comparatively few individuals. They are much more 



