194 [NOVEMBEK, 



This and the preceding are distinguished from T. tkoracica, Morton, by their 

 greater length compared with their breadth, as well as by the more round ribs. 



8. Cardita trapezium : shell rhomboidal, cordate ventricose, ribs acute, 

 crossed by coarse incremental lines. 



Dimen. Length 225 in.; br. 2 in. ; ht. 2 in. 



This shell differs from C. alticosta. Con., in outline, as well as in being more 

 ventricose, and having less prominent ribs. 



9. CccuLL^ LiEVis : shell smooth or marked by increment lines, ribs none ; 

 umbones ventricose; beaks nearly central; hinge area wide; plate of anterior 

 muscular impression extending from the beaks to the margin, wide. 



Dimen. Length 4-25 in. ; br. 3'5 in. 



This fossil can be distinguished from C. vulgaris, which it resembles, by the 

 smooth exterior, and deep and long muscular impression. 



10. Arca cancellata: shell thin, very inequilateral, cancellated by radiating 

 lines and approximating transverse lines ; umbones prominent ; beaks close ; 

 hinge-line slightly curved; posterior margin rounded, compressed; anterior 

 margin much contracted. 



Dimen, Length 25 in.; br. 3*5 in. 



The Committee on the following paper by Dr. Woodhouse, reported 

 in favor of publication in the Proceedings. 



Description of a new species of Numineus [Moehr.) 



By S. W. WooDHOTJSE, M. D. 



Numineus occidentalis. 



Form, In general form and color, this bird is much like N. longirostris, 

 Wilson. The color, however, is much lighter and more rufous, the bill short 

 and very slender, the primaries are more pointed ; their inner web is not so 

 broad. Wings extend about half an inch beyond the tail. Toes short and 

 slender. 



Inches. 



Dimensions. Total length of skin - - - - 16 3-lOths. 



Length of bill along the ridge . - 4 2-lOths. 



Wing from flexure - - - - - 11 5-lOths. 



Length of tarsus ----- 2 8-lOths. 



" middle toe - - - - 1 3^-lOths. 



" naked space of tibia - - - 1 6-10th3. 



Color. Feathers of the top of the head have a broad central line of blackish 

 brown, terminating on their side by whitish brown ; neck light reddish brown, 

 the shaft of each feather being black and terminating by a broad blackish-brown 

 spot. ThosB of the hind part of the neck have the central line of black much 

 broader. Chin white. Back black with irregular markings of reddish brown, form- 

 ing spots: these, as they approach the rump, become more reddish and are broader, 

 having much the appearance of bands. Upper tail coverts reddish brown ; 

 shafts black, with transverse black bands. The tail is slightly rounded, and 

 consists of twelve feathers of a reddish brown color, with ten transverse black 

 bands. Under coverts reddish brown. Belly and thighs light reddish brown. 

 Sides reddish brown, with irregular blackish brown zigzag lines. The shaft of 

 the 6rst primary is white ; the outer webs of the first three are black ; of the 

 fourth slightly mottled with reddish brown ; on their inner webs reddish, 

 mixed with irregular lines of brown ; the remainder of the primaries are reddish 

 brown, with zigzag transverse bars of black. The secondaries and tertials are 

 more black, the bands being confluent in the middle. Under plumage long 



