178 Coleojoterological Notices. 



straight for two-thirds the length from the base, thence together rather acutely 

 rounded behind ; disk transversely, strongly convex, rather coarsely, densely 

 and asperately punctate ; interspaces dull ; pubescence fine, rather long and 

 dense. Length 7.5-9.0 mm. ; width 3.8^.7 mm. 



Guadalupe Island. 



The present species, which is represented by a series of eight 

 specimens, is immediately distinguishable from the others by its 

 narrow subcylindrical form, parallel and much more rectilineal 

 sides, and generally coarser pronotal punctuation. 



C. muricata Horn. — Represented by a good series showing slight 

 variation, especially noticeable in the size and density of the pro- 

 notal punctuation. The color varies from dark brownish-ferrugi- 

 nous to piceous-black. One specimen differs in its more broadly 

 oval form. 



Length 8. 0-10. -5 mm.; width 4.3-5.5 mm. 



C. piinctulata Horn. — This species is represented by a homogene- 

 ous series of twelve specimens. The color varies from rather pale 

 rufo-ferruginous to piceous-black. 



Length 9.5-12.0 mm.; width 4 8-6.0 mm. 



All the species of this genus have a narrow, more or less incom- 

 plete, median pronotal line which is impunctate. 



C<ELIJS Esch. 



The genus Coelus is peculiar to the coast regions of California, 

 and is found in abundance in the sand dunes which line the sea- 

 shore. The species are somewhat closely allied, but scarcely to so 

 great a degree as in Coelotaxis and Coniontis. They may be recog- 

 nized by the characters given in the following table: — 



Anterior angles of epistoma distinctly prominent; size large gl'OSSIlS 



Anterior angles not at all i)roduced, broadly rounded. 



Form narrowly oval ; pronotal punctuation very fine and sparse, unevenly 



distributed ciliatus 



Form broadly oval ; pronotal punctuation coarse and deep. 



Punctures sparse arenaritis 



Punctures dense, evenly distributed, sometimes semicoalescent. 



glo1>osiis 



These species vary considerably in size, but the general outline 

 and punctuation are quite constant, so that there can be no difficulty 

 in identifying the forms here described. 



C grossilS n. sp. — Form rather broadly oval, very convex ; dark castaneous 

 to piceous-black, shining, minutely and sparsely setose above, more densely 



