On a neio West-African Squirrel. 733 



Subfamily 2. Periopsthalminje. 



Eyes close together, prominent, erectile ; base of pectoral 

 fin very muscular. Pectoral radials elongate, inserted on a 

 broad laminar ridge of the cleithrum ; hypocoracoid and 

 cleithruni enclosing a large foramen. Vertebrae 25 or 26 

 (10-11 + 14-16). 



Pei'iophthalmus, Boleophthalmus. 



Family 3. Psammichthyidae. 



The little fish from the Seychelles which I named 

 Psammiclithys nuclus * and placed in the family Trichonotidte 

 agrees better with the Gobioids in fin-structure and in the 

 number of vertebrge, and may provisionally be referred to 

 this suborder. The body is elongate, naked; the eyes are 

 very small and close together ; the mouth is oblique, with 

 the lower jaw prominent, pointed, and with nari-ow bands of 

 teeth in the jaws; the gill-openings are wide, but the gill- 

 membranes are narrowly joined to the isthmus. Tiie 

 vertebra, judging by the myotomes, number 21 or 25. The 

 dorsal fin is single, of 19 rays, the first five spinous, the last 

 spine rather distant from the fourth and from the first soft 

 ray ; the anal has 11 rays, tiie first a feeble spine, the caudal 

 11 principal rays (9 branched), the pectoral 8 rays. The 

 pelvic fins are separate, close together, a little in advance of 

 the pectorals, each of a spine and 5 soft rays. 



LXXXIV. — On a new West- African Squirrel presented to the 

 British Museum by Mr. P. A. Talbot. By Guv: Dollman. 



(Pubhslied by permission of the Trustees of the British Museum.) 



Funisciurus aiiriculatus olivice, subsp. n. 



Allied to Funisciurus auriculatus boydi, Thos. 



Size and proportions about as in boydi. General colour 

 of dorsal surface very different from that of the allied forms ; 

 nape of neck and shoulders pale yellowish olive, without the 

 conspicuous dark black tint present in auriculatus and boydi. 

 Posterior back and rump bright yellowish buff, washed with 



* Trans. Linn. Soc. 2nd ser. Zool. xii. 1908, p. 246, pi. xxxi. fig. 1. 

 Ann. (Sc Mag. N. Hist. Ser. 8. Vol. viii. 4.2 



