1850.] 



59 



Hirundo scapularis, nobis. 



Form. Tbat of a typical Hirundo. Wings rather long, first primary longest, 

 nearly all the prlnaaries with oblique terminal indentations, secondaries 

 emarginate. 



Dimensio7is. Total length of skin from tip of bill to end of tail 5i inches. 

 Wing 4 3-10. Tail 3 inches. 



Colors. Scapulars and inferior wing coverts white. Entire plumage above, 

 including wings and tail, black, with a fine violet lustre, darkest upon the head, 

 beneath white with a yellowish tinge, shafts of inferior tail coverts black, fea- 

 thers on the back white at their bases, some feathers on the breast black at their 

 bases. 



Hab. Eastern Africa. 



Ohs. Appears to be allied to H. leueosoma, Swainson, but is larger, and 

 although the scapulars are conspicuously white, it has no spot on the wing. One 

 specimen only in the Rivoli collection. 



The committee on Mr. Moss' description of a new Carpolite from 

 Arkansas, reported in favor of publication in the Proceedings. 



Descriptio7i of a new Carpolite from Arkansas . 

 By Theodore F. Moss. 



Trigonocarpum Woodrttffii. 



This very perfect specimen of a Carpolite was found in a fissure filled with 

 clay, in the clay slate, ten miles north of Little Rock, Arkansas, and forty miles 

 east of the coal formation, where it is probably in place. It is now converted 

 into iron stone. 



The figure represents the fruit in its natural size, showing the pore for the 

 passage of the embryo at the base. The epicarp is three 

 lobed, and therefore the fruit belongs to the Monocotyledonous 

 tribe of plants, and is about one-eighth of an inch in thickness. 



The inner part or endocarp is striated from the circumfe- 

 rence of the pore (hilum), for the passage of the embryo. 



I have called the specimen Tri gonocarpum Woodruffii, iu 

 honor of William E. Woodruff, Esq., of Little Rock, a gentle- 

 man who has done much to advance the knowledge of the 

 mineral wealth of Arkansas. 



ELECTION. 



Capt. William McMichael, of New York, was elected a Correspon- 

 dent of the Academy. 



