NO. 2245. BONES OF BIRDS FROM WEST INDIES— WETMORE. 517 



Femur with head large, anterior margin produced strongly as a 

 ridge. Depression for attachment of ligamentum teres deep and 

 elongate, with two slightly indicated excavations at bottom. Neck, 

 when viewed from above, as broad as head with a very slightly indi- 

 cated constriction separating it from head. Trochanter maxima 

 raised in a broad, strongly marked ridge, with the upper margin 

 evenly rounded when viewed from the outer side. The highest me- 

 dian point in the ridge is opposite the center of the head and not 

 anterior to this point as in other rails examined. Outer surface of 

 upper end of bone broadly expanded, this expansion being equal on 

 the two sides. A wide shallow depression on the anterior face below 

 the trochanteric ridge. The shaft is more strongly curved than in 

 other rails examined. Its anterior and inner surfaces are lightly 

 rugose save for a narrow space at either end of the bone. These 

 rugosities are very lightly impressed and are in a general way trans- 

 verse. The medullary opening is equidistant from either end of the 

 bone. The condyles are imperfect, being worn or eaten away dis- 

 tally. The rotular channel is deeply impressed. There is a shallow 

 popliteal depression bounded distally by a high ridge passing from 

 inner to outer condyle. At the lower end of the popliteal depres- 

 sion is a slightly raised ridge making a shallow distal pit. There are 

 no pneumatic foramina. A strongly marked linea aspera arises on 

 the inner side half way between the proximal end of the bone and 

 the medullary opening. This line swings in a gradual curve to the 

 posterior surface and then passes down to the angular base of the 

 inner condyle. The tuberosities marking the attachments for the 

 ilio-femoral and ischio-femoral muscles are strong and well defined. 

 The shaft is plano-convex, being flattened on the outer portion of 

 the posterior side. It is somewhat compressed on the antero-internal 

 face. At the medullary opening the shaft is bent strongly backward. 



Tibio-tarsus with proximal head large and strong. Inner facet 

 deeply excavated (deeper than in Aramides cayanea, nearly as deep 

 as in GalUrallus australis). The ridge external to this concavity has 

 a strongly rounded tubercle on its outer anterior margin. This the 

 writer has not seen in other rails. Anterior crest rather deeply 

 impressed for the attachment of the strong tendon of the muscle 

 femoro-tihialis. That part of the groove excavated immediately 

 above the inner anterior crest is at right angles to the longitudinal 

 axis of the bone and has its inner margin raised and complete. The 

 outer anterior crest (perfect in one fragment) is broad and strong 

 with a nearly straight margin below and a well curved outline above. 

 The inner anterior crest is broken away, but the margins indicate 

 that it was broad and as heavy as in other rails. The peroneal ridge 

 is long and strong. It is higher distally, where it terminates in a 

 blunt, slightly projecting spine. The nutrient foramen enters the 



