ARACHNI DA SOLIFUG/E. 199 



yourig Sparrow was bitten to deatli by the Galeodes, but not eaten. The 

 Galeodes bites animals of that kind close behind the head. It subsists 

 properly, however, upon all kinds of insects, which are not simply sucked 

 out but actually masticated. They do not spare each other, but fight for 

 life and death, and the vanquished is devoured by his conqueror. But, on 

 the other hand, the mother watches over the young with the utmost solici- 

 tude. The author confined a female, which laid above 50 white ova, over 

 which it watched without moving. The young left the ovum in 11 days, 

 and remained without motion for three weeks, until the first change of skin, 

 when they ran about and grew visibly, without the author being able to 

 perceive that they took any food. In a state of freedom the Galeodes is 

 found under stones, and in holes in the earth ; the imprisoned female also 

 dug a gallery for itself with the mandibles and legs. The author proposes for 

 the species the name of 0. vorax, it is, however, very possible that it does 

 not differ from the G.fatalis of Herbst. 



OPILIONES. 



A valuable Memoir on the Anatomy of Phalangium 

 opilio, has been published by Tulk. (Ann. Nat. Hist, xii, pp. 

 153,243, 318, pi. 3-5.) 



From the comprehensive researches of the author, which not only com- 

 plete those of Treviranus on the same subject, but serve to confirm them in 

 the principal points, I here adduce only some particulars. The nature of the 

 intestiniforrn organ, which Trevirauus regarded as belonging to the male 

 generative system, although he had not observed any direct connexion 

 with it, remains still doubtful in Mr. Tulk's opinion. He traced the excre- 

 tory canals of this organ around the principal tracheal trunks almost as far as 

 the respiratory orifice, and supposes that they must open externally in that 

 situation. In the nervous system, the central parts of which arc not con- 

 stituted, as is known, of a series of ganglia, but of several scattered, though 

 symmetrically-placed ganglia, no trace of its being composed of motory and 

 sensorial nerves was indicated. Peculiar to the Phalangium are some pairs 

 of muscles which are attached to the ganglion of the cephalo-thorax, and are 

 capable of moving it iii all directions. 



Remarks on the sexual organs of the Phalangium are communicated by 

 Westring (Kroy. Naturh. Tidsskr, iv, p. 351.) 



ACARI. 



Of Koch's ' Uebersicht des Arachniden Systems/ (3 Heft,) 

 the third Part has appeared, containing the continuation of 

 the division of the Mites. 



The second family of the "Running Acari:" Bi>ELLiDEs(proboscidal Aeari j. 



