508 HYI'SIGNATHUS JIONSTEOSUS. - 



tho dark back " frosted " with the same tinge, owing to the 

 presence of short greyish tips to the hairs ; abdominal patch 

 searcel)' indicated. 



In the whole series examined the general colour of the back varies 

 from the darkest extremes described above, through various brighter 

 tinges, to warm brownish fawn (the latter practically identical with 

 the average colour of Epomoj^s) ; pale collar generally distinct, 

 sometimes obsolescent ; abdominal patch sometimes conspicuous, 

 though never as strongly pronounced as in Epomops, often ill- 

 defined or indicated by a slightly paler tinge of the centre of the 

 belly, sometimes quite obsolete. The darker (plumbeous) tinges 

 appear to be predominant in adult males, the purer brownish or 

 brownish fawn in females. 



Measurements. On pp. 509-513. 



Specimens examined. Those catalogued below. 



Range. From Gambia, along the Guinea coast (including the 

 island of Fernando Po), east at least as far as Monbuttu (Tingasi), 

 south at least to the coast regions of French Congo (Ogowe ; 

 Fernan Vaz). 



Tiipe, in the collection of the Academy of Natural Sciences, 

 Philadelphia, skin and skull of an adult male, Gaboon (DuChaillu), 

 Keg. no. 969. Skull, total length 72, mandible (from condyle) 59, 

 c-m' (crowns) 24*2, forearm 128 mm. (James A. G. K.ehn, in litt.) 



a. 2 pull. al. West Africa. Purcliased (Dalton). 64.1.25.1. 



h. 5 iram.sk.; Gambia. Purchased (Ger- 76.7.21.1. 



skull. rard). 



c,d. 2 yg- ad- Benin. H. H. Squire, Esq. 4.8.28.1,2. 



2 imni. [P.]. 

 al. ; skull 

 of c. 



€. (S ad. sk. ; Kvva R., S. IS^igeria, P. A. Talbot, Esq. Orig. no. 8. 



skull. 200' ; 17 Aug. 1909. [C.]. 



/'. (5) uv.sk.; Oban, S. Nigeria, P. A. Talbot, Esq. Orig. no. 18. 



skull. 500' ; 3 Oct. niOO. [0.]. 



(/. (5 ad. al. ; Old Calabar (Bev. A. Murray, Esq. 62.1.23.1. 



skull. Wm. a Thomson). [P.]. 



{Type of Zyganoccphalus (and ISphyrocephalus) lahrosns, Murray.) 



h. (5 imm. al. Near Cameroon s. Purchased (Cutter). 71.7.10.1. 



i-A. 2 cJ ad., 2 Benito R., Spanish G. L. Bates [0.]. 98.10.7.2. 



imm.sk.s.; Guinea; 14 Apr. 99.7.22.1,2. 

 skulls. 1898, 13, 20 Mar. 

 1899. 



I. S ad- b1. Benito R. G. L. Bates [C.]. 99 7.22.6. 



VI. 2i"iin.al.; Ellobv district, Ga- 11. R Ansell, Esq. 74.10.6.4. 



skull. boon. [P.], 



n. S ad. sk. ; Nehali(Lake Asebbe), Dr. W. J. Ausorge 8.6.14.6. 



skull. Fernan Vaz, Ga- [0.]. 

 boon ; 29 Jan. 

 1908. 



o,p. S ad., 2 Lobi, nr.Angu, about Alexander- Gosling 7.7.8.21,22. 



inim.sks.; 3°30'N.,24°30'E.; Expedition [P.]. 

 skull of 0. 19 Feb. 1906. 



q. 2nn™-sk.; R. Welle, above Bam- Alexander - Gosling 7.7.8.23. 



.skull. bili,about3°40'N., Expedition [P.]. 

 26° E.; 22 Apr. 

 1906. 



r, s. 2 ad., 2 Tingasi, Monbuttu; Dr. Emin Pasha [C. 87.12.1.24,25. 



imm sks.; 29 Oct. 1883. & P.]. 

 skulls. 



