388 Prof. C. Giebel on some Species of Mallophaga. 



XLII. — Diagnoses of some Species of Mallophaga collected by 

 the Rev. A. E. Eaton during the late Transit-of-Venus 

 Expedition to Kerguelen^s Island. Bj Professor 0. GtIEBEL, 

 of Halle. 



The following species will be fully described in the forth- 

 coming work on the natural-history results of the Transit-of- 

 Venus expeditions to Rodriguez and Kerguelen's islands, to 

 be published by the Royal Society. The diagnoses are taken 

 from the paper on the Philoptera from Kerguelen's Island, 

 communicated by Professor Giebel to the Society for that 

 work. 



Docophorus dentatus^ n. sp. 



D. brevis, latus ; capite truncato-trigono, marginibus temporalibus 

 multisetosis, posticis bidentatis ; antennis setaeeis ; signatura 

 frontali feminis triaugulari, in lineam mediam occipitalem exeunte ; 

 thorace brevi, lato ; metathoracis hexagoni angulis posticis denti- 

 formibus ; pedibus brevibus, tibiis multispinosis ; abdomine orbi- 

 culari, maculis marginalibus intus rotundatis, ventralibus partitis. 

 Mas obscurior, marginibus abdominalibxis profunde crenatis, fasciis 

 medio divisis. 



Longit. corpor. 3-3-75 m. m,, capit. 1-25 m. ra., thorac. 0*75 m. m., 

 abdom. 1*75 m. m. 



Hob. On Diomedea exulans, March 1875. 



Nirmus anguUcolUs, n. sp. 



N. oblongus, fulvTis, fulvo pictus ; capite semielliptico, antice brevi- 

 rotundato, antennis ante medium insertis ; prothoracis angulis 

 anticis acute extantibus, metathoracis coarctati angulis obtusis ; 

 abdomine angusto, marginibus crenatis, maculis rectangularibus 

 ventralibus bipartitis. 



Longit. corpor, 3-25 m. m., capit. 0-50 m. m., thorac. 0*75 m. m., 

 abdom. 2-00 m. m. 



Hah. On Diomedea exulans^ March 1875. 



Nirmus setosus, n. sp. 



N. flavus, fusco pictus ; capite obtuse trigonali cordate, temporibus 

 late rotundatis, multisetosis ; prothorace lato, metathorace trape- 

 zoidali, angulis lateraUbus obtusis, multis atque longis pilis in- 

 structis ; abdominis oblongi marginibus obtuse crenatis, segmentis 

 fusco vittatis. 



Longit. corpor. 2 m. m., capit. 0-20 m. m., thorac. 0-20 m. m., abdom. 

 1-20 m. m. 

 Hab. On Pelecanoides lo'inatrix, October 1874. 



