412 PERCY SLADEN TRUST EXPEDITION 
the middle and opaque thence to the base; that of the female is simply curved, shining, 
closely, finely punctate, and without median ridge. The length varies from 24—4 mm. 
18. Cycloterinus carinifer, n. sp. (Pl. 22, figs. 16, 164, 2.) 
Oblong-ovate, robust, dull, glabrous; nigro-piceous or black, the under surface 
piceous, the rostrum, antennze, and tarsi, and sometimes the tibize and the base of the 
femora also, ferrugimous or obscure ferruginous. Rostrum very stout in both sexes; 
(¢) with the lower portion dilated and shovel-shaped from about the basal third, and 
the upper portion opaque, carinate, and rugosely punctate to near the tip; (?) simply 
arcuate, coarsely punctate, and more shining towards the apex. Eyes very small. 
Prothorax about as long as broad, subquadrate, the posterior portion transverse, feebly 
rounded at the sides and more or less angulate at each anterior angle, the tubulate 
anterior portion abruptly separated from the rest; coarsely, confluently punctate, with 
a sharp carina running down the middle and a short stout ridge midway between it 
and a similar ridge above the anterior angle, the interspaces between these elevations 
sulciform. Elytra considerably wider than the prothorax, somewhat scutiform, the humeri 
obtuse ; with rows of oblong deep foveze, the interstices alutaceous, 3—6 strongly, the others 
more feebly, costate, the ridge on 3 interrupted at some distance before the apex, and that 
on 5 abruptly terminating at the commencement of the apical declivity. Beneath very 
coarsely, closely punctate. Third tarsal joint moderately dilated, excavate above. 
Length 24—3 mm. (9). 
Loc. Seychelles: Praslin. 
Two females and one male, found in the decaying outer leaf-bases of a growing 
“ Coco-de-mer ” (Lodoicea sechellarum) in the Vallée de Mai, Nov. 28th, 1908. The 
carimate, quadrisulcate prothorax and the costate interstices of the elytra readily dis- 
tinguish C. carinifer. The rostrum of the male is similar to that of CL unicristatus. 
The prosternum is arcuate-emarginate at the apex, and all the coxe are widely separated. 
19. Cycloterinus canaliculatus, n. sp. (Pl. 28, figs. 17, 17a, 2.) 
Oblong-ovate, convex, opaque; glabrous; nigro-piceous or black, the under surface, 
rostrum, femora, and tibize rufo-piceous or obscure ferruginous, the antennze and _ tarsi 
ferruginous. Rostrum in both sexes very stout, simply arcuate, finely punctate, and 
feebly striate laterally, opaque in ¢, shining in @. Eyes very small. Prothorax longer 
than broad, the posterior portion subquadrate, with the sides rounded and more or 
less sinuate before the obtusely subangulate anterior angles, the tubulate anterior 
portion rather long and abruptly separated from the rest; coarsely, confluently punctate, 
and with a shallow median groove. EHlytra oval, much wider than the prothorax, 
convex, abruptly declivous behind; seriato-foveate, the interstices alutaceous, 3 and 5 
strongly, and 4 and 6 more feebly, costate. Beneath coarsely punctate; ventral segment 1 
broadly excavate down the middle in ¢. Prosternum deeply arcuate-emarginate at 
the apex. Anterior coxze moderately separated. Third tarsal joint moderately dilated, 
excavate above. 
Length 3—3+ mm. (9). 

