202 
A. Alcock — Carcinological Fauna of India. 
[No. 2, 
branchial spines are always prominent and very conspicuous. The 
rostrum consists of two spines, which are usually long and slender. 
The eyes are small, and are retractile against a sharp post-ocular pro¬ 
cess which commonly is but little cupped : there is also a supra-ocular 
eave which terminates either in a forwardly directed tooth or in an 
upturned spine. Basal antennal joint not very broad, sharply trun¬ 
cated : the mobile portion of the antennae freely exposed on either side 
of the rostrum. 
Merus of the external maxillipeds as broad as the ischium, slightly 
expanded at the antero-external angle, and bearing the palp at the 
antero-internal angle. 
Chelipeds in the adult male (but not in the female and young male) 
enlarged, with the palms broadened and compressed. 
First pair of ambulatory legs markedly the longest. 
The abdomen in both sexes consists of seven distinct segments. 
There is certainly a close superficial resemblance between this genus 
and Anamathia ; but I quite agree with Prof. Sars that the two forms 
are not very closely united. Prof. Sars thinks that Scyramathia is 
nearest to Hyastenus, an opinion with which I concur, although I also 
think that there are quite as close relations to Pugettia. 
Scyramathia pulchra , Miers. 
Anamathia pulchra , Miers, ‘ Challenger ’ Brachyura, p. 26, pi. iv. fig. 1 (adult 
male). 
Anamathia livermorii, Wood-Mason, Ann. Mag. Nat, Hist. March 1891, p. 260 
(young male and adult female). 
Body and limbs everywhere closely covered with short hairs, which 
on the carapace are peg-shaped; and with numerous long scattered 
setae. The carapace, which is subpyriform, is armed with twenty 
long sharp spines disposed in five longitudinal series. Of these spines 
five are on the gastric region, one is on the cardiac, and one on the 
intestinal region, one stands above either eye, one on each hepatic, and 
four on each branchial region : in addition there is a distinctly cupped 
post-ocular lobe. 
The rostrum consists of two slender divergent spines, the length of 
which is more than half that of the carapace. 
The eyes are small, and the cornea, though retractile against the 
post-ocular lobe, can never be concealed. 
The basal antennal joint is broad, and has its antero-external angle 
somewhat produced: the mobile portion of the antenna is completely 
exposed to dorsal view. 
