CLIONE. 



507 



Family CLIONID^. 



Animal fusiform. Head with a series of conical prominences on 

 each side. Wings two, with a central foot-like appendage between 

 them. 



In this family the conical prominences probably represent tentac- 

 nlar arms in a rudimentary condition ; there are two genera, one, Cli- 

 one, with the head indistinct and the tentacles defined, and the other, 

 Cliodita, with the head distinct, and the tentacles not apparent. 



Genus CHOICE, Pallas. 1774. 



Head indistinct; tentacles six, conical, three on each side. Tooth 

 of lingual membrane broad, convex behind, slightly two-lobed and 

 denticulated in front ; lateral teeth 12-12, simple, arched, rather 

 swollen at the base, the outer gradually diminishing in size. 



Clione limacina. 



Clio limacina, Phipps Voy. North Pole, 195 (1774). Fig. 754. 



Clione limacina, Stimpsox, Check Lists, 4 (1860). 



Clio retusa, Mullek. 



Clio boreal is, Brug. Encye. Me'th. Vers, i. 506 (1792). — 



De Kav, N. Y. Moll. 6, pi. 1, fig. 2 (1843). 

 Clio papiltonarea, Pallas. 

 Clio Mlquelonensis, Rang, Ann. Sc. Nat. 1st ser. v. 285 pi. 



7, fig. 2 (1825). 

 Clione horealis, Stimpson, Shells of New England, 27, no 



descr. (1851). — Gray, Brit. Mus. Pteropoda, 36 



(18.50). 



Gelatinous, pellucid, pale l)lue ; mouth 

 and end of the body scarlet out of water, 

 liyaline ; wings somewhat triangular ; tail 

 acnte. (Gni//.') 



Island of Miquelon. (Rang-.^ 



Fig. 754 is copied from a colored draw- 

 ing by Mr. Fuller, of a specimen driven 

 ashore at Portland last year. A full de- 

 scription of the animal will 1)c found in the 

 "Proceedings of the Portland Society of Natural History," Vol. I. 

 Part 2, p. 85, 1869, hy D. W. Wood. 



