78 Proceedings of the Biological Society of Washington. 



with second metacarpal; two minute foramina on either side at base; 

 a shallow anterior carpal fossa on posterior face ; outline of carpal articula- 

 tion viewed from inner side forming part of an ellipse with axis vertical, 

 the posterior margin forming one side of the ellipse; upper margin here 

 produced in a distinct ridge; posterior carpal fossa slight; pisiform process 

 low; internal ligamentous fossa deeply impressed; a distinct elongate fossa 

 on inner surface anterior to pisiform process, sharply marked by inner 

 extension of margin of third metacarpal as a distinct ridge ; base of second 

 metacarpal strong and heavy ; lower surface of third metacarpal distinctly 

 excavated so that it is concave. 



Measurements. — (Of type.) Extreme height (through crest of first 

 metacarpal) 16 mm.; length of first metacarpal 9.2 mm.; diameter of base 

 of first metacarpal (behind expansion for pollex) 2.5 mm. 



Range. — Known only from cave on the property of Don Gervacio 

 Torano near Utuado, Porto Rico. (Extinct.) 



Remarks. — The present species as shown by the characters of the few 

 fragments available seems to stand intermediate between Polyborus 

 cheriway (Jacquin) and P. plancus Miller. Its discovery marks an ex- 

 tension of range for the genus, as P. cheriway, its nearest neighbor in a 

 geographical sense, does not pass in the West Indies beyond Cuba and the 

 Isle of Pines, while on the southward it reaches only to Trinidad and cer- 

 tain small islands near the coast of Venezuela. 



Gallinago anthonyi, sp. nov. 1 



Characters. — Humerus similar to that of Gallinago delicata (Ord), but 

 distinctly larger and longer; ectepicondylar process shorter ; crista superior 

 relatively smaller. 



Description. — Type, Cat. No. 4922, Dept. Vert. Pal., American Museum 

 Nat. Hist., right humerus, from Cueva Catedral, near Morovis, Porto 

 Rico, collected in July, 1916, by H. E. Anthony. 



Humerus with head comparatively broad, crista superior relatively 

 low and slightly developed, projecting outward nearly at right angles to 

 shaft, with the projecting margin strongly rounded in outline; fossa sub- 

 trochanterica rather shallow; no pneumatic foramen; nutrient foramen 

 situated well above middle of bone 17 mm. from extremity of caput humeri ; 

 shaft comparatively strong, much flattened and broadened toward distal 

 end; base of ectepicondylar process low, summit distant 5.6 mm. from 

 extremity of radial condyle (tip of process broken away) ; depression for 

 brachialis inferior broad and well marked; ulnar condyle elongate. 



Measurements. — (Of type.) Total length 43.4 mm.; greatest breadth 

 of head 10.7 mm. ; lateral diameter of shaft at center 3.4 mm. ; intercondylar 

 breadth 7 mm. 



Range. — Known from Cueva Catedral and Cueva Clara, near Morovis, 

 Porto Rico. (Extinct.) 



Remarks. — This peculiar snipe is distinctly larger than Gallinago delicata 



1 Named in honor of H. E. Anthony, of the American Museum of Natural History. 



