228 ONISCUS, OSTREA. 



longer ; antennae filiform ; tail obtuse entire ; 

 body of ten segments, with white edges. Un- 

 der stones. 



assellus, (wood-louse,) feelers and antennae as in 

 the last ; tail obtuse, with two simple styles, 

 In walls and rotten wood. 

 Bee MS. P. 



4 3. OPHICEPHALUS. Spec. 2. 

 punctatus, body and beak entirely covered with 

 large scales ; gills 5-rayed ; body subcylindric. 



See MS. P. 



4 1. OPHIDIUM. Spec. 4, 

 barbatum^ lower jaw with four cirri. A foot long. 

 imberba, jaws without cirri ; tail bluntish. 

 See MS. P. 



2 2. ORIOLUS. Spec. 51. 

 phoeniceus, (oriole, red-shouldered blackbird,) 

 black ; wing-coverts tawny. Sometimes with 

 red shoulders. 



ferrugineus, (rusty blackbird,) black ; edge of the 

 wings rusty ; head and neck purplish-black. 

 Seven inches long. 



niger, (corn blackbird,) totally black. About 9 

 Inches long. Female greenish-brown. 

 Sec MS. P. 



4 5. OSTRACION. Spec 12. 

 triqueter, (trunk-fish,) body triangular, unarmed. 



Bee MS. P. 



93. OSTREA. Spec. 137. 

 Section A. Valves furnished with ears and radi- 

 ate. PECTEN of Bruguires. 

 maxima, (scallup,) ears equal ; shell with about 



