1871.] J. Wood-Mason— On Telphmt'da. 195 



tinued neither on to the inflected portion of the carapace, nor on the 

 posterior pleural region ; front broad,punctate, projecting pent-house 

 fashion over the antennulary pits between which it wholly forms 

 the broad septum ; its free margin is sinuous, presenting mesially 

 a broad shallow bay ; orbital borders indistinctly crenulated ; the 

 anterior pleural or subhepatic regions are faintly marked off from 

 the inflected portion of the carapace which bounds them external- 

 ly, while they are most distinctly separated from those portions of 

 the posterior pleural lobes which pass forwards, so as to form the 

 parallel boundaries of the buccal frame by a deep groove, running 

 outwards and backwards from the epistoma ; this is deeply exca- 

 vated and its posterior margin sends backwards in the middle line 

 a short broad-based triangular projection. The extra-orbital angle 

 is somewhat obtuse and is widely separated from the single acute for- 

 wardly directed epibranchial spine, in the rear of which is a very short 

 smooth crest. Branchial lobes enormously swollen and not subdivid- 

 ed, separated from the gastric region by the deeply impressed cervical 

 suture which does not pass through the postfrontal crest ; this 

 subsides without reaching the acute, arched antero- lateral margin, 

 and is interrupted by the advanced position of the epigastric 

 lobes ; these are in front rugose and faintly distinguishable from 

 the rest of the gastric region, but separated from one another by 

 a short nasogastric furrow. A very deep muscular impression is 

 visible at each postero-lateral angle of the gastric area. Cardiac 

 region convex, distinct. Two large puncta, which frequently become 

 confluent, mark the post-frontal furrow behind the external can- 

 thus of the eye. Chelipedes smooth and extremely unequal both in 

 males and females, in some the right, in others the left being the 

 larger ; meropodites are smooth and their angles rounded, the upper 

 one only being slightly rugose and bearing proximally to the constric- 

 tion at its distal extremity a sharp spine, as in the rest of the species 

 of the subgenus. The upper surfaces of the carpopodites are trans- 

 versely convex ; their inner margins armed with an exceedingly stout 

 sharp spine ; the penultimate joint is internally smooth, convex and 

 punctate, the puncta being disposed in longitudinal series ; the dacty- 

 lopodites are slender, much curved, longitudinally punctate, minutely 

 granular and only in contact with the extremity of the produced 



