54 
CATALOGUE OF BRITISH CRUSTACEA. 
Fam. III. PODOCERI DiE. 
Corophini, Leach, Ed. Enc. vii. p. 403. 
Podoceridae, Leach, Ed. Enc. vii. p. 432. 
Crevettes marcheuses, M. Edw. Crust, iii. p. 58. 
Corophidas, Dana, Amer. Joum. viii. (2nd ser.) 
1. JASSA. 
Cerapus, Say, Joum. Acad. Sc. Phil. i. p. 49 (1817). 
Jassa, Leach, Ed. Enc. vii. p. 433 (1814 or 1815). 
1. Jassa pelagica. Bell Bock Bock-Screw. 
Cerapus pelagicus, M. Edw. Crust, iii. p. 61 ; Cuv. R. A. (Croch.) 
t. 61, f. 2. 
Jassa pelagica. Leach, Ed. Enc. vii. p. 433; Linn. Trans, xi. p. 
561 ; Desm. Cons. p. 270. 
a — g. Scotland (Bell Bock). Presented by B. Stevenson, Esq. 
2. Jassa falcata. Montagu’s Rock-Screw. 
Cancer (Gammarus) falcatus, Mont. Linn. Trans, is. t. 5, f. 2. 
Cerapus falcatus, Thomp. Ann. Nat. Hist. xx. p. 244. 
Cerapus pelagicus, pt. M. Edw. Crust, iii. p. 61. 
a. Devon (Torcross). From the collection of Col. Montagu. 
2. PODOCERUS. 
Podocerus, pt. Leach, Ed. Enc. vii. p. 433. 
Jassa, pt. Leach, Ed. Enc. vii. p. 433. 
1. Podocerus variegatus. Leach’s Seaweed-Screw. 
Podocerus variegatus, Leach , Ed. Enc. vii. p. 433 ; Linn. Trans, xi. 
p. 361 ; Desm. Com. p. 269 ; Edw. Ann. Sc. Nat. xx. p. 384 ; 
Crust, iii. p. 63 ; Cuv. R. A. (Croch.), t. 64, f. 4. 
British Coast (amongst Algaj). 
a—f. Devon, &c. From the collection of Dr. Leach. 
