Genus Otion. 1^1 



Species 2. O. Blainvillianus. 



O. squamis inferis subrectis ; infra acumiaatis ; postica linear! ; 

 appendicibus auriformibus Tiolascente maculatis ; corpore 

 violascente fasciato, fasciis e punctis effectis. 

 Lepas cornuta, Mont. Trans. Linn. Soc. XI. 179. t. XII. f. 1. 

 Otion Blainvillii, Leaclh Journ.dePhys. LXXXV. (1817.) 67. 



Encycl. Brit. SuppL III. 170. t. LVI. 



f. dextra. 

 Mus. Mont, in Mus. Brit. 

 Description. — Lower valves nearly straight, acuminated below; 

 posterior valve linear ; auriform appendages spotted with 

 violet ; body with violet bands composed of dots. Montagu 

 found this species on the planks of a Transport, wrecked 

 on the coast of Devonshire. 



Species 3. Cuvieuianus. 

 O. squamis inferis subarcuatis, infra acuminatis, postica puncti- 

 forme, appendicibus auriformibus mediocribus; colore tes- 

 taceo. 

 Otion Cuvieri, Leach, Journ. de Phys. Ixxxv. (1817), 67. 



Encycl. Brit, SuppL iii. 171. t. l?ii. 



f. centralis. 

 Lepas aurita. Wood Gen. Conch, i. 70. pi. 4. (pessima). 



Habitat ? 



Mus. D. Cuvier. 

 Description. — Lower valves rather arched, acuminated below ; 

 posterior valve dot-shaped: auriform appendages of moderate 

 size ; colour testaceous. 



Species 4. O. Dumeuillianus. 

 O. squamis inferis angulatis, infra acuminatis; postica obsoleta ; 

 appendicibus auriformibus violascente maculatis; corpore 

 supra pedunculum violascente vittato. 

 Mus. nost. in Mus. Brit. 

 Description. — Lower valves angular, acuminated below ; posterior 

 valve obsolete ; auriform appendages spotted with violet : 

 body above the peduncle with violet stripes. I received this 

 o 2 



