382 ME. R. I. POCOCK ON THE 



d. Ta?7 parallel-sided, the fifth segment being equal to the 

 first in width and a little more deeply excavated above, con- 

 siderably smoother than in the female ; the keels almost obsolete, 

 about 6 times as long as the cephalothorax. The manus larger 

 than in the female, the width about equal to half the length of 

 the movable digit and much greater than the width of the 

 brachium ; the movable digit sinuate at the base with a distinct 

 lobe, less than twice the length of the " hand-back ; " the im- 

 movable also sinuate, so that when closed the two are separated 

 at the base. 



Fectines longer than in the female, just reaching the end of the 

 4th coxse ; the teeth longer than in the female, 17 in number. 



Length of fem^ale 47 mm., of carapace 5, of tail 28, width of 

 1st segment 2'8, length of 5th 5*2, width of 5th segmeut 2-5, of 

 vesicle I'S ; length of " band-back " 2-7, of movable digit 6. 



Length of male 43 mm., of carapace 4'3, of tail 26, width of 

 tail 2"5, of vesicle 1"5, length of vesicle 1"8. 



Locality. Trinidad. 



This pretty little species seems to be tolerably common in 

 Trinidad. The British Museum has received examples from 

 Messrs. W. E. Broadway, J. H. Hart, E. L. Gruppy, and Lady 

 Broome. 



7. TiTTUs PiCTTJS, sp. n. (PI. XXX. figs. 8-8 a.) 

 Colour very like that of T. melanostictus, but with the fuscous 

 patches larger and imparting a darker aspect to the whole 

 animal, the anteocular fuscous patch generally entire, the 4th 

 and 5th segments of the tail and the vesicle more deeply fuscous, 

 and the dactyli entirely fuscous except their tips. 



$ . The trunk more coarsely granular than in T. melanostictus, 

 the keels better marked. Tail slender, rather more than 5^ times 

 the length of the carapace, the 1st segment a little wider than the 

 5th ; all the segments more parallel than in T. melanostictus, the 

 keels higher and more conspicuously granular ; the vesicle much 

 more robust than in T. melanostictus, with only a small tubercle 

 beneath the aculeus. Manus of the palpi conspicuously keeled 

 above, larger than in T. melanostictus, the width less than half the 

 length of the movable digit ; digits long and slender, the movable 

 scarcely more than twice the length of the "hand-back," with 

 13 rows of teeth ; the two digits contiguous, although lobate and 

 sinuate p roximally. 



