42 CATALOGUE OF PTEROPODA. 



Fam. VII. CYM0D0C1D.E. 



Body divided into two parts. Wings 4, two on each side, at the 

 junction between the head and abdomen, with a foot-like ap- 

 pendage. Gills ? 



Cymodoceadae, Gray^ Syn. Brit. Mm. 1840 ; Proc. Zool. Soc. 1847, 



204 ; Agassiz, Nom. 

 Pneumodermidae, part, D'Orb. Moll. Cuba^ i. 70, 1841 ; Pal. Franc. 



ii. 1842. 

 CymodoceidcB, Gray, Syn. B. M. 1848, 88. 



1. CYMODOCEA. 



Character of the family. 



Cymodocea, DOrh. Voy. Amer. Merid. 133, t. 9, f. 16, 17; Moll. 

 Cuba, i. 70, 1841 ; Pal. Franc, ii. 1842, not. R. A. Salisbury. 



1. Cymodocea diaphana. 



Body elongate, diaphanous, translucent, showing the violet viscera ; 

 fins, upper pair broad, ovate, lower edge thickened, lower pair 

 narrow, digitated; medial appendage elongate, angular, nearly 

 at the tip, 



Cymodocea diaphana, D'Orb. Voy. Amer. Merid. 133, t. 9, f. 16, 

 17. 



Hab. Atlantic Ocean. 



