2a2 PARAMECIUM, PAUSUS. 
beneath ; feathers on the sides longer than the 
body ; two middle tail-feathers very long, brist- 
by 
See MS. P. 
144—2. Paramecium. Spec. 7. 
aurelia, compressed, longitudinally plaited towards 
the forepart, acute behind, In ditches and in- 
fusions. 
Sce MS. P. - 
2—5. Parra. Spec. 16... 
dominica, Gacana,) claws moderate ; legs yellow. 
4, See MS: P. 
2—2. Panvus. Spec. 31. 
americanus, ({titmouse,) bluish; temples, breast 
and back yellowish ; flanks purplish. 
ater, (colemouse,) head black ; back cinereous : 
hind-head and breast white. 
See MS. P. 
9—4. Paretta. Spec. 239. 
Section A. Having an internal lip. 
fornicata, (limpet,) shell oval, obliquely recurved 
behind; lip placed behind and concave. On 
oysters, &e. 
Section B. Having no internal lip 
_. jissura, (knee-pan,) shell oval, conic, with retica- 
late striz, cleft on the fore part ; crown recurv 
ed. 
See MS. P. 
8—5. Pausus. Spec. 5. 
ruber, reddish ; thorax jagged before. 
See MS. P. 
