^I4i Dr. Leach on Cirripedes, 



Species 6. C. Rissoanus. 

 G. corporfe supra trigono, squama postica medium versus genicu- 

 lata ; squamis aniicis processA postico brevi. Risso MS. 

 Color griseo-coerulescens, lineis atris flexuosis, longitudinalibusr 



notatus. 

 Lepas cinerea. Poli^ vi. 20 ? 

 Cineras cinerea. Risso MS. 



Hab. in Mari Mediterraneo, prope Nice, scopulis adheerens. 

 Description, — Body above triangular, posterior valve geniculated 

 near the middle ; anterior valves with a short posterior pro- 

 cess. Colour bluish grey, marked with flexuous longitudinal 

 black lines. 



Genus CLYPTRA. 



Species 1. C. Canckorum. 

 C. corpora azureo pallido ; squamis violascentibus ; anticis acut^ 

 angulatis, posticis arcuatis. 

 Clyptra Cancrorum, Savigny MS. 

 Mus. J. C. de Savigny. 



Hab. in Mari rubro. Corporis altitudo f unc. 

 Description, — Body pale azure colour; valves violaceous : anterior 

 valves acutely angulated ; posterior valves arched. 



Genus SCALPELLUM. 



Species 1. So. vulgake. 

 Sc. lameliis superioribus oblique striatis ; postica longitudinaliter 

 striata ; iuferioribus concentrice striolatis. 

 Scalpellum vulgare. Leach^ Enct/cl, Brit, SuppL i, Ivii. f. 



secunda sinistra. 

 Hab. in Mari Atlantico, Britannico et Mediterraneo, Fucis 

 adhasrens. 

 Description. — Upper valves obliquely striated ; posterior valves 

 longitudinally and inferior valves concentrically, striated. 



