APPENDIX. 619 



augulis anticis incrassatis, elytris nitidioribus minute punctatis apicem versus attenuatis, antennis 

 valde robustis, peclibus testaceis. 

 Long. Corp. lin. |. 



Habitat in Madera sylvatica, a Rev''" Dom" Lowe ad Ribeiro Frio (aestate a.d. 1851) detectus. 



C. ovate, convex, rufo-ferruginous, slightly shining, and clothed with a fine (though short) silken 

 pubescence. Head &tiA prothorax punctured (though much less densely so than in the C. affiais) : 

 the latter somewhat transverse-quadrate, and with the pubescence on either side of its disk 

 inwardly directed, causing the dorsal region to seem (especially behind) as though obsciu'cly 

 keeled ; the anterior angles thickened (but scarcely increased into a ridge, like those of the 

 C. affinis) ; and with the lateral edges very sparingly and irregularly subserrated (hardly cre- 

 nulate), — the central portion being rather more evidently dentiform than the remainder (the 

 extreme medial point appearing acute under a high power of the microscope). Elytra rather 

 more shining and less deeply punctured than the rest of the surface ; with the humeral angles a 

 good deal thickened and prominent; and gradually acuminated from the base to the apex. 

 Antenna exceedingly robust, and scarcely (if at all) paler than the rest of the surface. Legs 

 distinctly paler, being duU testaceous. 



A most anomalous little Cryptophagus, — bearing a certain prima facie resem- 

 blance, in colour, contour and texture, to some of the paler Nitidiila;. In the 

 form of its mentum it recedes from every species with which I am acquainted, the 

 front emargination being armed in the centre with a robust corneous tooth. Apart 

 from its diminutive bulk and the peculiar structure of the edges of its prothorax, 

 it may be at once known from the C. affinis by its ovate outline (its elytra being 

 gradually acuminated behmd), and by its rather darker and more shining, as well 

 as more lightly sculptm'ed and less pubescent sm"face. Its greatly incrassated 

 antennae moreover (the terminal joint of which wants the oblique truncation which 

 is just indicated in the normal members of the group), in conjunction with its 

 thickened and prominent himieral angles, should be especially noticed, as serving 

 additionally to distinguish it. 



(5) Atlantis Force (p. 380). I have lately received a series of this insect from 

 Mr. Leacock, captured on the Ponta Sao Louren90 ; and am inclined, on fui'ther 

 examination, to regard it as a local form of the A. Schaumii, and have con- 

 sequently entered it as such into the Systematic Index at the commencement of 

 this work. I shoidd state, however, that the small distinctive characters (with 

 the exception of the size, — which is more unstable than in the Porto Santan 

 examples, though on the average rather larger than is there the case) ah'eady 

 pointed out in the (then) unique specimen from which the diagnosis was compiled, 

 appear to be perfectly constant ; and I have therefore registered it as a well- 

 defined variety, — which at the least it must be allowed to be. At the same time I 

 would by no means wish to assert positively that the two may not be specifically 

 distinct. 



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