26 SIR CHARLES ELIOT. 



GALVINELLA. 



This genus agrees with Galviud in its dentition, which is an important point of 

 resemblance, 1)ut differs so much in other ways that it can hardly Ije included in the 

 same o-enus. The anterior corners of the foot are produced and pointed, the vent is 

 medio-dorsal and the cerata, though they have inflated tips, are not ovate as in 

 Galvina, but slender and bent. A few of them stand isolated near the centre of 



the back. 



The allied genus Galvina is common in the North Atlantic and G. rupium is 



recorded from Greenland. 



12. GaLVINELLA ANTARCTICA (FiGS. J AND K). 



One specimen from Winter Quarters, "Hole No. 11, rim," captured April 24th, 

 1903. It is rather stout and of a uniform yellow colour. Length 20 mm., breadth 

 across tips of cerata 8 mm., across the back 6 mm., height 5 mm. The foot is much 

 crinkled, but appears to have been about 4 mm. wide. It is grooved in front and 

 produced into short, straight tentacular angles. 



Pig. 28. — Galviiiella antarctica — Cbbata. 



The oral tentacles are short and thick, 3 mm. long and 2 mm. broad at the base. 

 The rhinophores are longer (5 mm.), somewhat dark and thick towards the apex. 

 Both the tentacles and rhinophores are wrinkled, but apparently not really perfoliate. 



The cerata (Fig. 28) have an unusual appearance owing to their standing a 

 considerable distance from one another and pointing different ways. They are mostly 

 bent, thick at the base and again thick at the apex, but rather slender in the middle. 

 The arrangement appears to be as follows when one looks at the complete specimen : — 



But an inspection of the facets after removing the cerata leads to the conclusion that 

 the anterior group is a horse-shoe, or two lines inclined towards one another, 



