1-"> S RO88IA. 



S. I.KlVoiM'KKA. Verrill. 



"Species pro baldly small, l.nt the three specimens observed 

 arc probably not lull grown. Body short, depressed, with the 

 mantle smooth. Ventral surface in middle, with :t somewhat 

 flattened heart-shaped or shield-shaped area, surrounded, except 

 in front, by a silvery white band, having a pearly or opalescent 

 lustre. Kyes small, with round pupils. Fins large, in the living 

 specimens nearly as long as body, broadly rounded ; the poste- 

 rior lobe reaches nearly to end of body, the anterior edge be- 

 yond front of mantle to the eye. The anterior edge of the 

 mantle is emarginate beneath ; above it is broadly attached to 

 the head. Sessile arms short; upper ones shortest-: third pair 

 largest : tentacular arms slender, extending back to end of body, 

 rpper surface of body thickly spotted with orange brown." 



Length to base of arms. 14 mill., in alcohol ; of mantle above. 

 s mill.; breadth. 7 mill.; breadth across tins. 1 (' mill. 



Gulf of Maine, 30 miles E. from Cape Ann, 



110 fathom*, muddy bottom. 



\ am by no means satisfied that this is a S<'i>i<>l(i. :ind unfor- 

 nately Prof. Verrill has neglected to describe the shell, which 

 would have fixed its generic position definitely. Whatever 

 genns it may belong to. however, the characters and proportions 

 given above indicate decided immaturity in the specimens ex- 

 amined, :nd nllord no valid reason for the supposition that the 

 adult will prove to be distinct from the species already described. 



IM-IIUS ROSSIA, Own. 

 II. i-AU'KWiosA. Owen. 



Body oblong: head nearly :is large as the body, swollen at 

 the eyes: fins placed anteriorly, contracted at their junction 

 with tin- body: arm- -horl. very unequal, order of length :j. -I. 

 '2. 1. cups in two n\vs at the base, and in many rows at the end 

 of tlie arm-, -imilar in size; tentacle- elongate, with very 

 many miii'ile sucker- on ihe clubs. Total length. f> inches. 



Arctic Sea*. 



Owen thinks that the eyelids di-eovered in t his species, and 

 from which it- derives its name, are a peculiar organization 

 designed as a defen-e for the . mst the spiciilar ice crys- 



tals, which, in the summer season, crowd the northern waters. 



