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- 

 ular 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 CLIOIVE, Pallas. 1774. 



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

 of lingual membrane broad, convex 1)ehind, 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, Stimpson, Clieck Lists, 4 (1860). 



Clio retttsa, Muller. 



Clio borealis, Brug. Encvc. Me'th. Vers, i. 506 (1792).— 



De Kay, N. Y. Moll. 6, pi. 1, %. 2 (1843). 

 Clio papilionace/i, Pallas. 

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



7, fig. 2(1825). 

 Clione borealis, SxiMPSON, Shells of New England, 27, no 



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



(1850). 



Gelatinous, pellucid, pale blue ; mouth 

 and end of the body scarlet out of water, 

 hyaline ; wings somewhat triangular ; tail 

 acute. QGray.^ 



Inland 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 be found in the 



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

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



C. limacina. 

 2 



