LOLIGOPSIDiE. 27 



Ex. C. scabra, Leach^ pi. 1, fig. 8. Shell, C scabra, 

 fig. 8, a. 



In Cranchia, the three upper pairs of sessile arms are 

 shortly webbed together ; there are two species, both from 

 the Atlantic Ocean. The genus is named in honor of Mr. 

 J. Cranch, naturalist to the Congo Expedition. Both this 

 genus and Lolicfojms are somewhat allied to the Octopidw ; 

 one of the most striking peculiarities is the tentacular club 

 being finned behind. 



Species of Cranchia. 

 maculata, Leach. scabra, Leach. 



Subgen. owenia, Prosch. 

 Sac joined to the neck by a pseudo-articulation. 



megalops, Prosch. 



Fam. LOLIGOPSID^. 



Eyes naked. Mantle supported by two internal fleshy 

 bands. Siphuncle simple. 



Shell solid, horny. 



The members of this family have the eyes peduncled and 

 not covered by a skin ; the fins are caudal, terminal, and 

 semicircular; the body is membranaceous, semipeHucid, 

 elongate, and tapering behind. They inhabit the high seas 

 and are powerful swimmers. 



Genus LOLIGOrSIS, Lamarck. 



Arras short, cups in two rows ; tentacular arms slender ; 

 funnel without a valve. Pen slender, with a minute conical 

 appendix. 



