PLATE CLIII. 

 SOLEN PELLUCIDUS. 



PELLUCID RAZOR SHELL. 

 GENERIC CHARACTER. 



Bivalve, with equal valves, oblong, open at both ends ; at the hinge 

 a. subulated tooth turned back, often double ; not inserted in the op- 

 posite shell. Animal an ascidia. 



SPECIFIC CHARACTER 



AND 



SYNONYMS. 



Shell suboval, somewhat arcuated, fragile, pellucid : hinge with an 

 acute bidentated tooth on one side. 



Solen Pellucidus : testa subovaii subarcuata fragile pellucida car« 



dine altero acute bidentato. 

 Solen Pellucidus, Perm. Brit. ZooL T. 4. p. 1. p. S4.sp. 23* 



A very rare species, and described only by Mr. Pennant, who 

 says it inhabits Red Wharf, Anglesea. 



