]8/6\] ON THE ANATOMY OF CERTAIN PARROTS. G91 



animal, as the lighter grey which prevails between the caudal and 

 dorsal fins might easily become pure white when adult. 



The figure and description that diverge most are those of Dr. Bright- 

 well. The black colour is described as extending over the whole 

 upper surface of the body in his specimen. This might, however, 

 be an individual variation. 



On the whole, in the absence of a larger series of specimens for com- 

 parison, I am disposed to agree with Dr. Cunningham, and conclude 

 that my specimen is, like his, a grey Lagenorhynchus albirostris. 



EXPLANATION OF PLATES LXIV. & LXV. 

 Plate LXIV. 

 Fig. 1. Delphinus albirostris, from Great Grimsby, see p. 679. From a sketch 

 by Mr. J. H. Scott. 

 2. Delphinus albirostris, from Lowestoft, see p. 686. Reduced from a pho- 

 tograph and a figure drawn by Mr. J. W. Clark. 



Plate LXV. 

 Stomach of Delphinus albirostris (Lowestoft specimen), two-thirds of the natural 

 size. A, first stomach ; a, opening into second ; B. second stomach ; 

 b, opening into third ; C, third stomach ; d, opening from C into the 

 long cavity D ; E, duodenum ; c, orifice opening into it ; F, opening 

 of pancreatic and hepatic ducts. 



14. Notes on the Anatomy of certain Parrots. By A. II. 

 Garrod, M.A., F.R.S., Prosector to the Society. 



[Received June 19, 1876.] 



Since the publication of my paper "On some points in the Anatomy 

 of the Parrots," in the 'Proceedings' of the Society (187-4, p. 58fi), I 

 have had the opportunity of dissecting several species, some of which, 

 from their peculiarities, deserve special note. They are the following: — 



1. Dasyptilus pecqueti. It is through the great kindness of Dr. 

 A. B. Meyer that I have had the advantage of being able to dissect 

 this extremely rare bird. Dr. Meyer obtained the specimen in New 

 Guinea, and has preserved it in spirit, entire. He has most liberally 

 allowed me to determine those anatomical points to which I have 

 drawn attention in the paper above referred to. 



There are two carotid arteries; the left, however, runs superficially 

 as in the Psittacidse (as defined by me). The oil-gland is large, sub- 

 globose and possesses a well-developed tuft of shortish feathers around 

 its orifices. The rectrices are twelve in number. 



In its myology and osteology it agrees with the Pyrrhurinag in 

 entirely wanting the ambiens muscle, and in having a furcula, which 

 bone is not large or powerful, nor so slender as in the Lories. 



The orbital ring is incomplete, the eye not being encircled by bone. 

 The femoro-caudal muscle is large ; and the semitendinosus with its 

 accessory head are well developed, — in which arrangements it agrees 

 with all the Psittaci. 



The intestines are 17^ inches long, there being no trace of caeca. 

 The liver-lobes are somewhat unequal in size, the left being the 

 smaller. The stomach is small and much like that in the Fruit-eating 

 Parrots generally. The proventriculns forms a dilated sac, of which 



