19U7.] NATURAL SCIENCES OF I'lIlLADELrill A. 2(30 



between tip of mandible and vent, well before origin of pectoral and 

 reaching 3 J to anal or 3 to vent, and spine 2 in fin. Color in alcohol 

 more or less pale or uniform brownish, above variegated with darker 

 marblings and somewhat paler below. Fins all with more or less 

 brownish. Iris pale slaty. Length 4 J inches. Panama. Dr. W. S. W. 

 Riischenberger. 



Rypticus saponaoeus (Schneider). 



West Palm Beach, Fla. (George B. Wood). 



Rypticus ooriaceus (Cope). 



Eleutheractis coriaceus Cope, Trans. Am. Pliilos. Soc. Pliila., (2) XIV, 1S71, 

 p. 467, fis;. 3. Type, No. 13,44.5, A. N. S. P. St. Martin's, West Indies. 

 Dr. R. E. van Rijgcrsma. 



Width of head 2^ in its length ; interorbital space 12 in head measured 

 from tip of upper jaw. Edges of body rounded and caudal peduncle 

 compressed. Head compressed. Supplemental maxillary narrow 

 and long. Bands of small fine teeth in jaws and on vomer and pala- 

 tines. Tongue edentulous, rather long, narrow and free. Interorbital 

 space narrow and slightly convex. Gill-opening forward to posterior 

 margin of pupil. Rakers ix, 2 4- 5, ix, lanceolate, and about f of 

 longest filaments w^hich are f of orbit. Vent near front of anal. 

 Color in alcohol more or less deep uniform brownish, fins little darker. 

 Length 8| inches. 



Byptious bistrispinis (Mit chill). 



Rhypticus maculatus Holbrook, Ich. S. Car., Ed. 2, I, 1860, p. 42, PI. 6, fig. 

 ? Type, No. 13,232, A. N. S. P. South Carolina (off Cape Romain) Dr. 

 J. E. Holbrook. 



The above example may be Holbrook's type, but his description gives 

 the length of his single example as 8 inches, while the above is but 7^. 

 Also as the color has faded I cannot detect the markings or spots he 

 indicates. 



