458 Mr. A. Murray on Coleoptera from Old Calabar, 



corrugated and papillose, a central keel with a longitudinal fovea 

 on each side of it running up the middle of the median tooth. 

 Antennse as in the other species, but rather more slender in 

 proportion, fuscous. Thorax subquadrate ; sides subparallel, only 

 sloping very slightly in, till they reach the marginal tooth (which 

 is scarcely one-fourth from the base), when they turn in directly 

 to the base. In the posterior angles there are a number of 

 faint papillae ; there is a margin all round the thorax continued 

 in front, where it is widest ; the dorsal line, which is distinct, 

 reaches this margin, but does not at all enter on it. Scu- 

 tellum on peduncle, smooth; prescutellar space rugose in the 

 middle, smooth all round. Elytra nearly parallel, subconvex, 

 punctate-striate, interstices impunctate; a narrow margin sur- 

 rounds the elytra, next to which, both at the base and all round, 

 there is a space covered by papillae ; a row of impressions runs 

 up the middle of these papillse ; the margin at the base takes 

 the shape of a keel, ending in a small tooth at the shoulder. 

 There is no longitudinal keel starting from this and running up 

 the elytra. There is no appearance of larger impressions upon 

 the striae. There is some appearance of the papillse spreading 

 themselves in a very faint form near the apex. The under side 

 is not so smooth as the upper. The segments of the abdomen are 

 very finely granulated. The prosternum and mesosternum have 

 a number of minute, scattered papillae on their sides, and the 

 back part of the under side of the head is slightly rugose or 

 granular. Two distinct punctures occur, one on each side of 

 the middle of the abdominal segments, the last segment having 

 another puncture on the exterior margin ; the first and second 

 segments are soldered together, and appear as one. The ante- 

 rior tibiae are tridentate, with four smaller distinct teeth behind 

 them. The inferior surface of the palmated space is transversely 

 corrugated. The middle tibiae have two larger teeth projecting 

 near the apex, and a number of minute denticulations behind 

 them. 



2nd Division. Intermediate tibia with only one prominent pro- 

 jecting spine. 



4. S. rotundicollis, mihi. 



Niger, nitidus ; antennis pedibusque ferrugineo-brunneis ; tibiis 

 anticis tridentatis, postice unidenticulatis ; capite fronte bi- 

 foveolato et antice bipunctato; thorace angulis posticis ro- 

 tundatis, et intra eos leviter papilloso ; elytris curtis, obovatis, 

 striatis, punctis tribus impressis. 



Long. 7| lin., lat. 2^ lin. 



Black, with the antennae and legs ferruginous brown. Man- 



