692 ON THE ANATOMY OF CERTAIN PARROTS. [June 20, 



the walls, instead of being, as is usually the case, thick and glandu- 

 lar, are strikingly thin, at the same time that no glands are visible. 



Dr. Meyer has already* given a short description of the peculiari- 

 ties of the tongue, and, in writing to me, tells me that he has further 

 observations to make on the same. 



As in nearly all birds, the main artery of the thigh is the sciatic, 

 whilst the vein is the femoral. 



There is a fenestra near the posterior margin of the sternum, on 

 each side. 



2. Deroptyus accipitrinus. A Brazilian specimen of this rather 

 peculiar genus from the Society's collection has the two carotids 

 arranged as in Dasyptilus, the left being superficial. The furcula is 

 of fair size, the orbital ring incomplete, the oil-gland well tufted, the 

 ambiens muscle absent. 



3. Poly teles ban-abandi possesses two carotids, normally situated — in 

 other words, side by side in the hypapophysial canal. The furcula is 

 small and slender. The oil-gland is decidedly large, and well tufted. 

 There is no ambiens muscle. The intestines measured 40 inches. 



4. Chalcojmtta scintillata has the two carotids normally situated, 

 a small furcula, a small tuft to the large oil-gland, and no ambiens 

 muscle. The intestines measured 37 inches. 



5. Coi-yphilus fringillaceus has the two carotids normal, the furcula 

 small and slender, no ambiens muscle, and a well- tufted oil-gland. This 

 specimen was kindly given me by Canon Tristram, carbolized and dry. 



Of genera which have already passed through my hands I have 

 had the following additional species : — 



Ara militaris. Licmetis tenuirostris. 



Cacatua moluccensis. Lor ins domicilla. 



■ philippiaarum. Pyocephalus meyeri. 



Eclectus grandis. Tanyynuthus albirostris. 

 Eos reticulata. 



They all agree with those species previously dissected, except 

 Licmetis tenuirostris, which has only one carotid, the left, whereas 

 L. pastinator has two. It will be interesting to verify this difference 

 between the South-Australian species and its more western ally ; for 

 the uncertainty of the disposition of these vessels in the Cacatuinse 

 is rendered more striking if it is correct. 



In the specimen dissected, of Cacatua philippinarum, a gall-blad- 

 der was present. This is the only case in which I have seen this 

 viscus in any Parrot. 



Formulating the varying characters of the above newly dissected 

 geuera upon the principle adopted in my earlier paper and there ex- 

 plained, the formulee run thus : — 



(1) Dasyptilus 2.— . + . + . (4) C/ialcopsitta 2.- . + .+ . 



(2) Deroptyus 2,— .-f.-|-. (5) Coryphilus 2.— . + . + • 



(3) Potyletes %.— . + . + . 



Such being the case, Dasyptilus and Deroptyus fall into my sub- 

 family Pyrrhurinse, whilst the other three must be placed with the 

 Palaeornithinse. It is interesting to notice that Deroptyus agrees with 

 Pyrrhura, and not with Co?turus. 



* Mittheil. aus rleni k. zoologisolien Museum zu Dresden, 187^. p. 14. 



