4'JO Miscellaneous. 



Description of a neio Squirrel (Sciurus Gerrardi) from New Granadu. 

 By Dr. John Edward Gray, F.R.S., V.P.Z.S. 



Mr. Edward Gerrard lately brought to me a Squirrel that he had 

 not been able to identify with any other specimen in the Collection, 

 or with any of the American s})ecies lately described, and which he 

 was convinced was distinct from any of the American Squirrels of 

 about the same size in the Museum by the peculiar form of its skull. 



I have therefore drawn up a short description of the species, and 

 named it after my assistant, who has done so much to extend the 

 osteological collection in the Museum, and who is so ready to impart 

 his extensive knowledge of Vertebrate animals and their osteological 

 structure to any one who may desire to profit by it. 



Sciurus Gerrardi. 



Blackish : hairs brown, with black tips, with a broad subapical 

 orange ring ; cheeks yellowish brown ; lore part of the back, sides 

 of the neck and body, shoulders, and outer side of the fore legs, and 

 front of the hinder legs bright-red bay ; feet pale bay ; base of the 

 tail blackish, with the hairs slightly varied with pale-orange rings ; 

 middle of the tail bright bay, end black ; throat from under the eyes, 

 inside of the fore legs, chest, and belly pure white ; ears blackish, 

 with very short scattered hairs. 



Hub. New Granada. British Museum. 



Size and form of the European Squirrel, but the tail longer and 

 the ears not pencilled. The skull is very different from that of Sc. 

 Langsdorffi, being small and more lengthened. 



The newly born young specimen is coloured precisely like the adult; 

 but the tail is slender, rather depressed, but nearly cylindrical, covered 

 with elongate close-pressed hair. — Froc. Zool. Soe. March 12, 1861. 



On a new Genus of Australian Freshwater Fishes. 



By Dr. Albert Gunther, For. Memb. Zool. Soc. 



Fam. PercidtE. Group Apogonina. 



Nannoperca. 



Body compressed, oblong, covered with scales of moderate size. 



Dorsal fins slightly continuous at the base, the first with seven spines. 



No recumbent spine before the dorsal fin. Three anal spines. 



Narrow bands of villiform teeth in the jaws, on the vomer and the 



palatine bones. None of the bones of the head serrated. Branchio- 



stegals six ; pseudobranchise present. Lateral line none. 



Nannoperca axjstralis. 



B. 6. D. 7 i- ~ A. |. V. 1/5. L. lat. 30. L. transv. 12. 



This species resembles a young Perch in general appearance, but 

 is more elongate ; the greatest depth of the body is above the 

 root of the ventral fin, and contained four times and five-sevenths in 

 the total length ; the length of the head is contained three times and 

 two-thirds in it. The snout is moderately produced, as long as the 

 orbit, with the cleft of the mouth oblique and rather narrow, the 



