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One specimen from Iguana Cove, Albemarle Island, in December. 



Order A CARINA. 

 Family IXODID.^. 



AMBLYOMMA PILOSUM Neumann. 

 Neujuann, Mem. Soc. Zool. France, p. 209 (1899). 



Many specimens from Albemarle in March ; one from Narboro in 

 April. Described from the Galapagos Islands from a specimen in the 

 Marx collection. 



ARGAS TRANSVERSA sp. nov. 

 (PI. II, fig. 9.) 



Length i.i mm.; width 2.1 mm. 



Blackish, legs paler. Body flattened, nearly twice as broad as 

 long; around the margin are rows of tubercles, each bearing a short 

 stiff bristle, the upper row with the longest bristles ; the surface above 

 is traversed by many irregular lines, dividing the surface into irregular 

 flattened elevations; a median and two lateral depressions and two 

 behind; below granulate on sides; behind the legs the surface is 

 clothed with yellowish sharp denticles; legs short, scarcely visible 

 from above, hairy ; mouth-parts small. 



One specimen from Tagus Cove, Albemarle Island, in February. 

 Easily recognized by shape of body. 



Family TYROGLYPHID^. 

 TYROGLYPHUS sp. 

 A few specimens from Narboro Island, in March. Not sufficient 

 material for determination. 



