408 INIr. R. H. jNIeade on the British species of PbalangiidjE. 



Phalangium histrix, Latr. Hist. Nat. des Fourtn. p. 376 ; Gen. t. i. p. 140 ; 



Walck. Hist. Nat. des Ins. Apt. t. iii. p. 121. 

 Opilio histrix. Leach, Samouelle's Ent. Comp. p. 120. 



Ccphalothorax nearly semicircvilar, and considerably narrower 

 than the abdomen, which is depressed ; the front is elevated and 

 bears a cluster of tubercles, the three foremost of which are pro- 

 longed forwards in the form of large thick teeth (fig. 6 c). The 

 circumference of the cephalothorax is armed with teeth, which 

 are arranged on crenulations or semicircular projections, three or 

 four in number on each side. Eye-eminence small and crested, 

 with blunted tubercles (fig. 6 a). Abdomen with the posterior 

 edge of each ring furnished with a row of minute teeth. Legs 

 short and stout, first joints of the tibijB armed with short spines 

 at their extremity (fig. 6 b). 



The colour is dirty yellow, spotted and mottled w4th brown ; 

 there is an oblong dorsal band on the abdomen with nearly 

 straight sides and square extremity, of a brown colour, the mar- 

 gins of which arc darker than the centre. The abdominal seg- 

 ments are marked by transverse rows of round yellow spots, 

 each having a dark point in the centre. The legs are pale yel- 

 low annulated with brown. The male is shorter and propor- 

 tionably wider than the female, but otherwise similar. 



I have included this fine Phalangium in the list of British 

 species upon the authority of Samouelle, who says, in his * Ento- 

 mologist's Useful Compendium,' that it is found in England, but 

 I have never seen a native specimen. It is very common in the 

 neighbourhood of Paris, from whence I have received many in- 

 dividuals. In the illustrated edition of the 'Regne Animal/ 

 published by the pupils of Cuvier in 1840 (the division on the 

 Arachnida in which was edited by Duges and iMilne-Edwards), 

 there is an imperfect representation of this species, marked 

 fig. 1 a in plate 23, where it is designated as the female of 

 P. cornutum, and named P. opilio. This gross inaccuracy proves 

 that there is as much ignorance respecting the species of this 

 family in France as in England. 



3. Opilio ephippiatus, Koch. 



Corpore ferrugineo vel murino, albo punctato ; vitta dorsali 

 nigra vel ferruginea, maribus valde notata ; lateribus abdo- 

 minis argenteis : thorace tribus dentibus gracilibus et fere 

 erectis, margine antico, medio positis : pedibus gracihbus. 



Long. foem. 3, maris 2 lin. 



Acantholophus ephippiatus, Koch, Die Arach. B. xv. p. 121. t. 539. 



Body somewhat short and convex ; abdomen rather wider than 



