348 Mr. F. 0. P. Cambridge on the 



I dare not pronounce them to be so. Both forms occur in 

 the island of Tabrobane. The vulva differs in form from 

 those of all other Ctenida^ which 1 have yet met with. 



A male anOi a female of this interesting species were taken 

 by Mr. Barnes in Ceylon *. 



Ctenus Flower i, sp. n., (^ ? . 

 (PI. IV. figs. t2-2b?) 

 Hah. Pinang. 

 Type in coll. Brit. Mus. Nat. Hist. (coll. S. S. Flower). 



^ . Tot. len. 15*o mm., carap. 8, ant. marg. of carap. 3 ; legs 

 i. 24-5, ii. 22-5, iii. 20, iv. 28 ; pat. + tib. i. 8, iii. 6, iv. 8. 



? . Tot. Icn. 17 mm., carap. 8"5, ant. marg. of carap. 4'o ; 

 legs i. 21, ii. 20, iii. 19, iv. 26; pat. + tib. i. 7*5, iii. 5'75, 

 iv. 7-5. 



^. — Colour. Mahogany -brown. Carapace with broad 

 central band of silver-white pubescence, slightly dilate behind 

 caput and at central stria. Marginal line of wliite pubes- 

 cence very fine. Abdomen with broad central dorsal band 

 of white pubescence, deeply dentate on each side behind the 

 middle, narrowing to spinners. Ventral surface unicolorous 

 dark brown. Lateral area with a few scattered minute white 

 spots. 



Legs paler brown^ indistinctly annulate with grey, Coxje 

 clothed with white pubescence above. Tibiae i. andii. clothed 

 above on apical two thirds with very conspicuous wliite 

 pubescence, less conspicuous on iii. and iv. 



(J. — Structure. General characters similar to those of 

 TlwrelUi and the female (see below). Carapace convex- 

 horizontal above, not gibbous behind. 



Ped'ipcdii. Tibia short, twice as long as broad (excluding 

 process), bearing on outer side a broad process whose base 

 extends the whole length of the segment, concave beneath, 

 narrowed and curving forwards at apex, terminating in a 

 broad point having a minute notch on tlie outer side. Seen 

 from the outside the apex appears rounded and convex. 

 Tarsus scarcely twice as long as broad. Palpal organs large, 

 occupying total width and three fourths the length of tarsus. 

 Central lobe very long, nearly four times as long as broad, 

 straight^ compressed-cylindrical, attenuate in middle, broader 

 and broadly rounded at apex, slightly inclining outwards. 

 Unca small, crossing beneath apex of central lobe. 



* Half a dozen males and the same number of females of this species 

 have just come before me from Ceylou. They were kindly submitted to 

 me by tlie Rev. O. P. Cambridge, and were taken many years ago by 

 Mr. Thwaites. 



