ARTHROPOD FAUIfA OF THE WEST IXDtES. 541 



on each side, considerably overlapping the frontal process, the 

 apex o£ which is not visible from above. 



Mandibles nearly smooth above, the two terminal tubercles 

 slightly enlarged. 



CJielce robust, resembling those of T. iarhadensis, but differing 

 in the following particulars : — the spines on the trochanter are 

 shorter, there are 9 spines instead of 8 on the upper edge of the 

 tibia, the 3rd from the proximal end and the 4th from the distal 

 end being the longest, as in T. Iarhadensis ; but between these 

 two spines there are tivo more in T. viridiceps, and only one in 

 T. Iarhadensis. 



Legs relatively longer as compared with the width of the 

 carapace than in T. Iarhadensis {cf. measurements) ; 2nd tibia of 

 4th leg barely half the length of the 3rd, and equal to about one- 

 third of the distance between the eyes. 



Measuretnents in millimetres. — Total length 13 mm., width of 

 carapace 9-3, median length 6, distance between eyes 3*5. 

 Chela : length of femur 4-2, of tibia 6-2 ; width of latter 3, 

 length of longest spine 2. Legs : femur of 1st 16, of 2nd 11, of 

 3rd 11-5, of 4th 9-8 ; tibia of 2nd 10, of 3rd 11-5, of 4th 11. 



Locality. Bahamas {Mrs. BlaJce). 



This species differs from all the West-Indian species known to 

 me in the armature of the upper edge of the tibial segment of 

 the chela. 



In addition to the species described above the British 

 Museum has one example allied to T. Eeyserlingii, but too young 

 to identify, from Jamaica (P. H. Gosse), and another allied to 

 T. fessellata, from Dominica {G. A. Bamage). 



The following species are, so far as I can ascertain, unknown 

 to me : — 



Tarantula reistiformis (Linn.), Syst. Nat. ed. 10, p. 619. 



Locality. Antigua. 



Judging from the proximity of Montserrat to Antigua, the 

 species I have characterized as T. Pallasii (Bl.) will perhaps prove 

 to be synonymous with T. reniformis. 



Tarantula margine-maculata (C. KocJi), Die AracJin. viii. 

 p. 6, fig. 597. 



Locality. West Indies. 



This species should apparently fall under section a^ of the 

 above table, but nearer than this I am unable to place it. 



