260 REV. O. p. CAMBRIDGE ON NEW [Feb. 15, 



the wrinkles taking different but regular directions on the different 

 parts of the body. 



The eyes are very minute, in two pairs, one on either side of the 

 caput ; those of each pair are near together but not contiguous. 



The legs are 5-jointed, slender, aud not very long ; they are armed 

 with fine spines, bristles, and hairs, and terminate with two tarsal 

 S-shaped claws, springing from a small terminal joint, and furnished 

 beneath with some slender prominent clavate hairs. The legs are in 

 pairs, the first and second, and third and fourth legs on each side 

 having their basal joints respectively contiguous to each other, as in 

 the genus Tromhidium, and articulated to the fore half of the lower 

 surface of the body. 



The palpi are short, strong, 4-jointed ; and to the upperside of the 

 base of the digital joint is articulated a strong curved claw. 



The maxilla;, labium, hndfalces coalesce and form a kind of suc- 

 torial apparatus, towards the fore part of which on the underside 

 are two opposed curved saw-edged processes. 



Several examples of this curious Acarid, found under stones, were 

 contained in the Rev. A. E. Eaton's Kerguelen's-Land collection. 

 Being so very minute and delicate, they had suffered considerably by 

 being preserved in strong spirit. 



Fam, Bdellides. 

 Gen. SciRus, C. Koch? 

 SciRus PALLiDXJs, sp. D. (Plate XIX. fig. 2.) 



Length | a line. 



As far as I could ascertain from the single example contained in 

 the Kerguelen-Island collection, this small Acarid is an undescribed 

 species of the genus Scirus. Its colour is a dull yellowish white; 

 and there are a few obscure blackish markings in two parallel 

 longitudinal hnes along the upperside of the abdomen. The 

 body and legs are furnished with a few longish pale semidia- 

 phanous hairs. The eyes are in two pairs, those of each pair 

 contiguous, and in the position indicated by the two small oval 

 markings in figure 2 b. The only example received was injured by 

 the action of the spirit in which it had been preserved, so that the 

 exact details of its structure could not be satisfactorily observed ; in 

 the general appearance, however, of the beak-like mouth-parts there 

 seemed to be but little difference from the genus Bdella and others 

 nearly allied. 



Order AcARiDEA. 



Fam. IxoDiDES. 



Gen. Hyalomma, C. Koch. 



Hyalomma puta. (Plate XIX. fig. 3.) 



Length | line. 



Body oval. Cephalothoraic yeWovi^sh brown, strongly tinged with 

 red on cither side of its fore part and on the fore part of the caput. 



