218 rev. o. p. Cambridge on [Mar. 4, 



T. civilis (Walck.). The markings, however, on the cephalothorax 

 and sternum, as well as the ambulation of the legs, are more distinct, 

 and perhaps bear a rather nearer approach, both upon these parts 

 and also on the abdomen, to T. atrica (Koch), from which the small 

 size of the present species, independently of other characters, at 

 once distinguishes it. The femora of the first pair of legs are 

 also less suffused with dark reddish brown than in T. civilis ; but in 

 the palpi are perhaps contained the best distinguishing characters. 

 The cubital and radial joints in both species bear the same (or very 

 nearly the same) relative length to each other, the latter being rather 

 longer than the former, enlarging on the outer side towards its ex- 

 tremity, where, as in T. civilis, there is a small red-brown corneous- 

 looking apophysis ; but in that species this apophysis is broadish 

 and obliquely truncated at its extremity, while in the present species 

 it is less strong, tapering and pointed at its extremity ; the digital 

 joint is also larger ; and the palpal organs, although bearing the 

 same general form and structure, are perceptibly different in their 

 development ; from their centre (connected with a strong corneous 

 process) there issues a filiform spine, which, curving backwards and 

 with a bold sweep round their inner margin, continues in a thread- 

 like form quite round their extremity, ending on or close to their 

 outer margin : an analogous spine exists in T. civilis ; but in that 

 species it is much shorter and stronger, with a closer and far smaller 

 sweep, and its point is not drawn out into a thread-like form. 

 Several other processes analogous to each other are connected with the 

 palpal organs of the two species ; but in the present they are, although 

 longer and more prominent, yet proportionally not quite so strong. 



A single adult male was contained in Mr. Melliss's St.- Helena 

 collection now under consideration. I feel no doubt that the ex- 

 ample contained in a former collection, and recorded (I. c, supra) 

 as T. atrica, is of the same species as the present, though that ex- 

 ample had not attained maturity. 



It is possible that this may be the T. testacea, Sim. (Arane*ides 

 nouveaux ou peu connus du midi de 1' Europe, 1870, p. 10), found 

 at Granada, in Spain ; it agrees with that species in the form of the 

 digital joint and the radial apophysis as described by M. Simon ; 

 but I am inclined to think it is distinct. 



Fam. Scytodides. 

 Genus Scytodes. 



SCYTODES THORACICA. 



Scytodes thoracica, "Walck. Ins. Apt. i. p. 270. 

 An adult female was contained in Mr. Melliss's St.-Helena col- 

 lection last received. 



Fam. Pholcides. 

 Genus Pholcus. 

 Pholcus distinctus. 



Pholcus distinctus, Cambr. Linn. Soc. Journ. vol. x. p. 380, 

 pi. xi. figs. 28-30. 



