338 Mr. F. 0. P. Cambricb-e on the 



f3 



T liavc no doubt tliat L. valvulan's, van Ilass., is congeneric 

 wifh pulvinatus and trabifer ; an example of the latter, identi- 

 fied (not tlie type) by Dr. Thoreli e coll. E. W. Gates, being 

 now before me. So similar is aJbofasciatus to pulvmatus and 

 valvidaris (according to the descriptions) that even the four 

 rows of ventral white spots are common to these forms. 



Species described vnder Leptoctenus, L. K. 



1882. Leptoctenus valvidaris, van Hass. $, 13 mm. IV. 



3de Aflev. Naturlijke Historic,, ])t. 11 a, p. 45, pi. v. 



fig. 12 (Leiden). Sumatra [Pick van Korintzi & Sir A. 



van IJasself). Type in coll. Bijks Nat. Hist. Mus. 



Leiden. 5, PI. IV. fig. 16 {after van Hasselt). 

 9. Tot. len. 13, carap. 6, abd. 7 mm. Tibia? 2.2.2.2 

 S))ines and 2 a])ical spines. '^Abdominus nigro-fuscus, in 

 ventris medio paullo l^etior absque pictura evidente, quamquam 

 vestigia obscura serierum lateralium punctorum et striarum 

 oblique transversarum {Lycosiformium) sub lente apparent." 



Tlie general cliaracter is evidently similar to that of ThoreUii 

 and to another form before me from Japan^ but is quite distinct 

 from the former, judging by van Hasselt's figure (see PI. IV. 

 fig. 16 for reproduction), and also, so far as one can judge 

 without comparing the types^ from the latter. 



1884. Leptoctenus denticidatas, Sim. $, 8'5 mm. Ann. 



Mus. Genov. xx. p. 355. Burmah. 

 Le2)toctciius dent iculatus {Sim.), Thov. (^ $. Llah. Burmah 



(coll. IF. Gates). Examples in coll. Brit. Mus. Nat. 



Hist. 

 ^ . — Structure. Carapace horizontal, not gibbous behind, 

 but still slightly raised and convex ; abruptly inclined to base. 

 Eyes closely grouped ; 2nd row straight by centres. Posterior 

 centrals one third larger than anterior centrals, half a diameter 

 npart, distant from anterior laterals one half a diameter of 

 latter. Ocular quadrangle broader than long, much narrower 

 in front. Posterior centrals one third larger (by diameters) 

 than anterior centrals ; the latter one quarter of a diameter 

 a])art, one half from anterior margin of clypeus. Tibiai i. and ii. 

 with 2 — 2 — 2 — 2 — 2 long spines beneath ; no apical pair ; 

 1 basal spine on inner side, 1 — 1 dorsal, 1 — 1 on outer side. 

 Protarsi i. and ii. with 2.2.2 long spines beneath, 1 — 1 

 spines on inner side, and 1 — 1 on outer side; no dorsal 

 spines. Patellfe i., ii.^ iii., iv. with 1 spine on each side. 

 Pedipalp, see PI. IV. figs. 4, 5, 6. 



$ . — Structure. Similar to that of male, but carapace hori- 

 zontal. Tibiffi i. and ii. with no lateral or dorsal spines, 



