PCECILOPODA. CRUSTACEA. CECROPS. 341 



and a half in length. The margin of the shield, behind the anten- 

 nae, is very thin and finely fringed, to favor adhesion. This may 

 be Pterygopoda Latreillii. Otherwise it may be called C. cris- 

 tdta. 



ANTHOSO'MA SMi'THII, LEACH; Diet, des Sc. JYta., xiv. 533. Encyc. 

 Brit., Suppl^ vii. 406, pi. 20. GRIFFITH'S Cuv. (Crust.), pi. 21, f. 2. LATR. ; 

 DESM. ; Consid., <^c., 335, pi. 50, f. 3. 



Found by Dr. D. H. Storer, on a shark (Lamna punctata) , in 

 a cavity near the anus, which these animals seemed to have ex- 

 cavated. 



CECROPS LATRE'lLLII, LEACH; Encyc. Brit. SuppL, vii. pi. 20, f. 1. 

 DESM. ; Consid., fyc., 338, pi. 50, f. 2. LATR. ; LAM. 



Found upon the sun-fish (Orthogariscus wo/a), by Drs. Binney 

 and Storer. The characters of this curious animal seem to have 

 been but imperfectly known. I have made out a detailed descrip- 

 tion of it, with figures, which I shall take some other opportunity 

 of publishing. 



PENE'LLA FILO'SA, Cuv. A long, worm-like animal, with a 

 horned head and bushy tail, which penetrates deeply into the sides 

 of the sun-fish ( Orthagoriscus mola) . 



BRANCHIE'LLA THYNNI, Cuv. 



CHONDRACA'NTHUS CORNU'TUS, Cov. Lernea cornuta, MULL. ; En- 

 cyc. M6th., pi. 78, f. 1. 



