MARINE MOLLUSCA OF THE UNITED STATES. 113 



1. D. CORONATA, Gmelin. Fig. 231. 



iDoris.) Syst. Nat. i. 3105. 1790. 

 Melibcea coronata, Johnston, Ann. Nat. Hist., i. 117, t. 3, f. 5-8. 



Animal yellowish, dotted with red ; veil square in front ; 

 branchifB fiA^e to seven on each side, ovate club-shaped, bearing 

 several circles of papillte with dark red tips. 

 Length half an inch. 



New England. {Eur.) 



Family .EOLIDID^. 



Synopsis of Genera. 



Body broad ; tentacles four, smooth, elongate, subulate ; labial feelers 



elongate ; gills papillose, arranged in longitudinal rows, not clustered, 



numerous, depressed, and imbricated. ^olis, Cuvier. 



Tentacles subulate, annulate, or perfoliate ; labial feelers subulate ; gills 



clustered, or arranged in separate tufts along the back. 



Flabellina, Cuvier. 

 Body linear : tentacles subulate, smooth, simple ; labial feelers short ; gills 



in a single row on each side ; foot square in front. Tergipes, Cuvier. 

 Head without tentacles ; labial feelers very long and tapering ; gills pyri- 

 form, placed in longitudinal lines ; front of foot angular. 



Calliopjsa, D'Orbigny. 



Genus .ffilOLIS, Cuvier. 

 Tabl. Elem. 1798. 



1. M. PAPILLOSA, Linnseus. Fig. 232. 



(Limax.) Syst. Nat., edit. xii. 1082. 1767. 

 Eolis farinacea, Fould, Stimpson, Invert. Grand Manan, 25. 1853.' 



Animal ovate-oblong, depressed, dusk3' or orange-colored, dotted 

 with brown, ochreous, or white; branchite numerous, somewhat 

 compressed, crowded and imbricated, eighteen to twenty-four 

 oblique ranges ; dorsal tentacles short, smooth, conical, labial 

 tentacles short and simple; angles of foot slightly prolonged. 

 Length two to three inches, breadth one-third the length. 



iVew England; Northern Europe. 



2. M. SALMONACEA, Couthouy. Fig. 233. 



(Eolis.) Bost. Journ. Nat. Hist., ii. 68, t. 1, f 2. 1838. 

 Eolis Bodoensis, Moll. Moll. Groen. 1842. 



Body nearly diaphanous ; back with a conspicuous elevation in 

 the middle ; head large, with four tentacula ; the superior minutely 



' There are about a dozen additional synonymic names by British authors. 



