PLATE X. 



PINNA MURICATA. 



THORNY WING J OR SEA 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 strise beset with acute, ovated, and 

 concave scales or prickles. 



Pinna Muricata: testa striata, squamis concavis ovatis acutis. 



Gmel. Lin. Syst. Nat. Conch, p. 3364. Sp. 4. 

 Pinna tenuis, striata, muricata. List. H. Conch, tab. 310. fg. 210. 

 Pinna fragilis. Brittle. Fcnn. Br. Zool. No. 80. tab. 59. Jig. 80. 

 Pinna. tenuis costis longitudinal ibus muricatis. Muricata, Thorny. 



Da Costa, tab. 16. fg. 3. p. 240. 

 Pinna recta transversim et directe stiiata, et rugosa, striis in sumrai- 



tate aculeis exasperatis, ex fusco rubro nigricans. 



Gualt. 1. Conch, tab. 19. fig. D. 



Seb. Mus. 3. t, 92. ser. 1./. 

 Concha Pinna. Hasselq. it. 447. n. 137. 

 Pinna lata altera. Hum/. Mas. t. 46./. M. 



