214 
Gnathoncus Severini n. sp. 
Ovatus, convezus, niger, nilidus; fronte haud striata, capite 
thoraceque dense punctatis; elytris striis 1-4 integris, 5 abbre- 
viata, sulurali integra antice hamata. — Long. 3 1/2 mill. 
Oval, convex, black and shining; the head densely punctate, 
striate only over the eye, transversely impressed before the clypeus; 
the thorax also densely punctate, in a small discal area before the 
scutellum the punctures are smaller but equally dense, the marginal 
line is very fine and ceases behind the eye, behind the neck there 
is a straight marginal line not connected with the other; the elytra, 
striæ 1-4 complete, 5 apical but passing the middle, sutural com- 
plete and hamate at the base, the hooks turn outwards and point to 
the fifth stria, interstices all more or less punctulate; the propygi- 
dium and pygidium densely punctate, punctures larger than those 
ofthe thorax ; the prosternum, incised at the base, striæ parallel at 
the sides and widening out behind the coxæ and joined anteriorly, 
anterior lobe somewhat coarsely punctured; the mesosternum 
sinuous on either side, marginal stria very fine especially in the 
middle ; the metasternum is divided from the mesosternum by a 
straight crenulate line. 
Hab. Barway, INprA (Cardon). One example. 
ON SOME NEW SPECIES OF HISTERIDÆ#, 
WITH NOTES OF OTHERS, 
By G. Levvis. F. L. S. 
Monsieur G. Severin has kindly sent me over for examination 
some Histeridæ from the Museum of Brussels. I find fine new 
species amongst them and of there I have furnished descriptions. 
LIST OF SPECIES AND THEIR LOCALITIES. 
Placodes senegalensis Payk. Old Calabar and River N’Gamic. 
Apobletes foliaceus Payk. River N’Gamic. 
Platysoma africanum n. sp. River N'Gamic. 
Pachycrærus histeroides Mars. River N’Gamic. 
— diversicollis Sch. River N’Gamic. 
— latus n. sp. River N'Gamic. 
— cyaneus Er. River N'Gamic. 
— modestus Lew. Aden. 
— caffer Er. Tanganika. 
— major L. Old Calabar, 
