'U')4 Mr. II. 1. Pocock on Scorpiones and 



Leinji,- finer than in si'Ivestris, as is particulaily noticeable on 

 the superior caudal crests. And, lastly, in silvfutris the vesicle 

 is higher than in the other species, the tooth beneath the 

 aculeus being very high, with a blunt and obliquely truncate 

 apex. 



Pectinal teeth 14-16 (in a young specimen 12-13). The 

 single male example has 15. Rows of teeth on digit 14 (not 

 including small apical rows) ; 15-16 along the outer row. 

 (In Quelchii there are 13-14 rows of teeth, and not 11 — 12 as 

 erroneously stated in the original diagnosis.) 



The sexual characters are the same as in paraguayensis^ 

 but the fourth and fiftli segments are much less strongly 

 elevated. 



2 . Total length of body and tail 34 millim., of tail lO'O; 

 width of first segment 2, of fifth I'O ; width of brachium and 

 hand 1-8. 



S. Total length 30-5, of tail 19, widtii of its first and 

 fifth segments 2 ; width of brachium 1*5, of hand 2. 



Loc. Saiitarem. Several specimens collected in the forest 

 by lU. F. O. P. Cambridge. 



Note. — In addition to the specimens of Titf/us iiere recorded, 

 other examples belonging to the americanus type were col- 

 lected at Parana Buyassu and in the forest at Santarem ; but 

 since oidy females Avere obtained, I have refrained from defi- 

 nitely attaching names to them, seeing that they are not 

 structurally identical with the females either of Camhridgei 

 or of mctuendus. 



Family luridae. 



Subfamily CiiACTiyi. 



Genus Broteochactas, Poc. 



Bj-oteochactas parvuJus, sp, n. 



5 . — Colour a tolerably uniform blackish brown, redder on 

 chela and vesicle; legs fulvous, with femur and patella 

 externally infuscatc ; lower surface fulvo-fuscous ; pectines 

 testaceous. 



Cnraj'dce with its anterior border very slightly emarginate ; 

 the interocular area and the dorsal portion of the area behind 

 the median eyes smooth ; lateral portions closely and finely 

 granular, witli a few larger granules intermixed. 



Td-ga sliining, nearly smooth, finely granular laterally and 

 mesially, with a few larger granules intermixed, the last 

 more coarsely granular, but without distinct crests. 



