Pea be xX. 
° PINNA MURICATA. 
, THORNY WING, OR SE4 HAM. 
GENERIC CHARACTER. 
Hinge without a tooth, and placed on one side. Valves equal; open, 
or gape at the bottom. 
SPECIFIC CHARACTER 
AND 
SYNONYMS. 
Shell triangular, striated; the strie beset with acute, ovated, and 
concave scales or prickles. 
Pinna MoricaTA: testa striata, squamiis concavis ovatis acutis. 
Gmel. Lin. Syst. Nat. Conch. p. 3364. Sp. 4. 
Pinna tenuis, striata, muricata. List. H. Conch. tab. 310. fig. 210. 
Pinna fragilis. Brittle. Penn. Br. Zool. No. 80. tab. 59. fig. 80. 
‘Pinna tenuis costis longitudinalibus muricatis. Muricata, Thorny. 
Da Costa, tab. 16. fig. 3. p. 240. 
Pinna recta transversim et directe striata, et rugosa, striis in summi- 
tate aculeis exasperatis, ex fusco rubro nigricans. 
Gualt. 1. Conch. tab. 79. fig. D. 
Seb. Mus. 3. t, 92. ser. 1. 
Concha Pinna. Hasselg. it. 447. n. 137. 
Pinna lata altera. Rumf. Mus. t. 46. fM. 
