342 Miscellaneous. 



The species of Alcelaphus may be thus tabulated : — 



a. Animal, including the inside of the ears and rump, uniform 



brown, with a few black hairs on the underside of the tuft of 

 the tail. A. biibalis (the Bubale). North Africa. 



b. Animal, including the rump, pale brown above, separated from the 



pale beneath by a well-detined straight line on the sides ; inside 

 of ears white ; end of tail black. A. Lichtensteinii (the Godonko). 

 Eastern Africa (Peters's ' Mossambique '). 



c. Animal brown ; inside of ears, rump, and back of legs whitish. 



* Face, dorsal line, and outside of limbs brown, like the rest of 

 the animal ; end of tail black. Horns diverging. A. torn 

 (the Tora). Abyssinia. 

 ** Sides of the head, dorsal line, outside of limbs, and end of tail 

 black. Horns thick, erect. A. caama (the Caama). South 

 Africa. 

 The British Museum has a pair of horns sent by Mr. Fraser from 

 Tunis, which Mr. Blyth has described and figured as Boselaplms 

 major (P. Z. S. 1869, p. 53, f. A, 1 & 2) ; and he says it has black 

 marks above the hoof: but I have never seen this animal in the 

 perfect state; and the horns are very like those of the common 

 Bubale. 



On Khopalorhynchus Kroyeri, a new Genus and Species of Pycno- 

 gonida. By James Wood-Mason, of Queen's College, Oxford. 



Much difference of opinion has prevailed with regard to the sys- 

 tematic position of the Pycnogonida, as to whether they should be 

 classed with the Crustacea or with the Arachnida. By one set o£ 

 naturalists (including Johnston, Milne-Edwards, De Quatrefages, 

 Kroyer, and Dana) they have been placed with the Crustacea ; by 

 another, including Latreille, Erichson, Gerstiicker, and Huxley — who 

 separates them, as well as the Tardigrada and Pentastomida, from 

 the typical Arachnida (spiders, mites, and ticks) as an aberrant 

 order — with the Arachnida. Dr. Anton Dohrn*, who has recently 

 studied the embryology of these animals, finds that they are in no 

 way related to the Arachnida, that they resemble the Crustacea in 

 having a naupliiform first developmental stage, but that from this 

 point the course of development ceases to exhibit any thing in common 

 with that of the Crustacea. Under these circumstances I have 

 thought it better to call the cheliceres, palps, and accessory legs 

 ( = mandibles and first and second pairs of maxilla? of Kroyer) of 

 those who range the Pycnogonida with the Arachnida, the first, 

 second, and third pairs of cephalic appendages respectively, thus 

 avoiding the use of terms implying affinities and homologies that 

 may not in reality exist. 



RHOPALOBnYNCHirs t, gen. nov., Wood-Mason. 

 Corpus lineare, gracillimum, annulis thoracis perdistinctis, cylin- 



* Jenaische Zeitschrift, 1869. 



t potrdKov, clava ; pvyx°s, rostrum. 



