814 ADDENDA AND CORRIGENDA. 



Page 54. 

 Add the following species : — 



11 bis. Rousettus (Lissonycteris) smithi, Thos. 



Rousettus smithi, T/ioinas, Ann. ^- 3Ia(/. N. H. (8) ii. p. 375 (1 Oct. 

 1908: Sierra Leone). 



Diagnosis. — As R. (L.) anr/olmsis, but much smaller, with m* 

 and m^ more reduced (about half the size, in angolensis about two- 

 thirds, of respectively m' and ra^), and the fur considerably shorter 

 and extending more thinly on proximal half of tibia, leaving distal 

 half practically naked. Forearm about 70 mm. (about 78-83 in 

 angolensis ; for detailed measurements of both species see pp. 8;32- 

 834) ; fur of back 6'5 (general mass of hair) and 10 mm. (longest 

 hairs) ; in angolensis the corresponding measurements are 8-1 1 

 and 13-15. Hah. Guinea Coast ; so far known with certainty 

 only from Sierra Leone and Nigeria, but the specimens of " ango- 

 lensis" recorded in literature from Togo (see antea p. 51) may 

 belong to the present species. 



Colour (tj'pe, 2 subad.). — Duller brown, less suffused with 

 burnt umber or vandyck-brown, on upperside than in the fully 

 adult R. (L.) angolensis, but closely approaching an immature skin 

 of the allied species (7.7.8.24). Back and rump dull fawn-brown ; 

 nape pale fawn-drab ; head similar to back or perhaps more tinged 

 with dull drab ; breast and belly between hair-brown and broccoli- 

 brown, flanks suffused with pale fawn. 



Remarks. — One of the reasons which induced the present writer 

 to give to Lissonycteris {angolensis) only the rank of a subgenus of 

 Rousettus, in spite of its many and relatively important peculiar 

 characters, was a natural reluctance to add to the already large 

 number of monotypic genera of Fruit-bats. The discovery of a 

 second and perfectly distinct species (smithi) showing exactly the 

 same peculiar cranial and dental characters as angolensis, without 

 any approximation to Rousettus s. str., renders it ])robable that 

 future systematists may prefer to consider Lissonycteris a distinct 

 genus. Its principal differential characters are these : — Brain- 

 case peculiarly flattened posteriorly, basicranial axis only slightly 

 deflected, both characters giving the skull in profile a rather 

 striking resemblance to that of Epomophorus ; rostrum conspicu- 

 ously lower, premaxillse coossified anteriorly, their ascending 

 branches thinner; frontal sinuses more inflated ; postdental palate 

 relatively longer; cheek-teeth shorter and broader, subsquarish, 

 their outer and inner ridges much more cusp-like (shorter antero- 

 posteriorly, and higher vertically), those of p^ separated (fused in 

 Rousettus), those of m,, m,, and m, even slightly diverging above; 

 m^ reduced (smaller, in Ro^isettus larger, than p"*), p, reduced 

 (slightly, in Rousettus much, larger than i,^). To this may be added 

 the shortness of the tibia and the conspicuously greater length of 

 the fingers (see p. 53). Stenonycieris (Rousettus hempi and lanosus), 

 though forming a well-marked group, is so intimately connected 



