38 



part only occupies the hinder half of the back or loins, the shoulders 

 being exposed and covered with hair like the rest of the body. 



The tail in Cephalotes is short and rudimentary, flattened, and 

 formed of four or five very short joints, and not elongated and in- 

 curved as in the new genus. 



I may observe that, though the index-finger of the Cephalotes 

 peronii from Celebes (in the British Museum, received from the 

 Leyden Collection) is not provided with any distinct, well-developed 

 claw, the end of the bone is curved upwards and rather produced 

 into a resemblance of a claw, — there being no indication of such an 

 appendage in the animal from Viti. 



Pteropus amplexicaudatus, from Timor, has a rather elongated 

 head, a short free tail ; and the wings arise from the sides of the back, 

 with a broad hairy space between their bases ; but this differs from 

 Cephalotes in having a small distinct claw on the end of the index- 

 finger, and in having four chisel-shaped cutting teeth in the lower 

 jaw, occupying the whole of the rather wide space between the base 

 of the large canines ; and it has four rather conical cutting teeth in 

 the upper jaw. 



NOTOPTERIS MACDONALDII. (PL LXVII.) 



Pale-reddish brown above, rather greyer beneath ; the hinder 

 half of the back, which is covered by the bases of the wings, bald, 

 with a very narrow line of short hair down the vertebral line. The 

 rump and upper surface of the base of the interfemoral membrane 

 covered with hair. 



Hab. The Island of Viti Leon, Feejees. September 1857. Male 

 and female. Iris dark hazel. (John B. Macdonald.) 



Male. Length of head and body A\, tail 2, fore-arm bone 2i, leg 

 bone l\ inch. 



Female rather smaller : arm-bone 2\ inches. 



8. Notice of a New Genus of Lofhobranchiate Fishes 

 from Western Australia. By Dr. John Edward Gray, 

 F.R.S., V.P.Z.S., etc. 



(Pisces, PI. VII.) 



Among the collections made by the Medical Officers of H.M.S. 

 ' Herald,' above referred to, is a curious and apparently new species 

 of Syngnathidce, of which I give a brief description. 



Haliichthys. 



Mouth elongate, quadrangular, with a spine on the middle of each 

 side of the upper edge. Body six-sided. Tail quadrangular. The 

 shields of the head and body with a more or less elongated spine, 

 each ending in a very long slender filiform beard. Under side of 



