EEPOET ON THE STOMATOPODA. 
75 
brief and imperfect that it is impossible to decide how closely related these two are. They 
may be the same species, but so far as the description shows, it is quite possible that the 
resemblance is a superficial one only, and that they are not at all similar in their essential 
characteristics. 
5. Protosquilla ylyptocerca (Wood-Mason). 
Gonodadylus glyptocercus , "Wood-Mason, Proc. Asiatic Soc. Bengal, p. 232, 1875. 
Gonodadylus glyptocercus , Wood-Mason, Ann. and Mag. Nat. Hist., ser. 4, vol. xvii. p. 263, 1876. 
Gonodadylus glyptocercus , Miers, E. J., On the Squillidae, Ann. and Mag. Nat. Hist., ser. 5, 
vol. v. p. 123, 1880. 
In his description of this species, which is very brief, he does not say whether the 
sixth abdominal somite is fused with the telson. It is possible that it is not related in 
any way to the species of Protosquilla, but I place it here provisionally as the only 
points he mentions show a striking likeness to Protosquilla cerebralis, with which it 
may possibly be identical. 
His short notice simply says that it is like Gonodadylus trispinosus, but that the 
terminal post-abdominal somite is ornamented with two oval tubercles, bounded by an 
impressed inverted line, and with a medium cinquefoil-shaped one, and the two preced- 
ing segments symmetrically engraved with fine lines. 
6. Protosquilla guerinii (White) (PI. XVI. figs. 1 and 6.) 
Gonodadylus guerinii, White, A., New Crustacea, Proc. Zool. Soc. Lond,, January 22, 1861, 
p. 43, pi. vii. 
Gonodadylus guerinii, White, A., Ann. and Mag. Nat. Hist., vol. vii., 1861, p. 476. 
Gonodadylus guerinii , Miers, E. J., On the Squillidse, Ann. and Mag. Nat. Hist., ser. 5, 
vol. v., 1880, p. 121. 
Diagnosis. — Protosquilla with eyes slightly enlarged at tips, carapace as wide as 
long. Second thoracic somite exposed. First five abdominal somites with marginal 
carinae. Fifth abdominal somite with several transverse rows of short acute dorsal spines 
on its posterior half. Sixth abdominal somite covered on its dorsal surface with 
numerous long spines. Posterior edge of telson with two pairs of marginal spines pro- 
jecting backwards. The submedian with a single row of secondary spines on each side, 
and the laterals with a single row on the inner and a double row on the outer edge, 
running from its tip along the outer edge of the telson to its anterior end. Dorsal 
surface of telson with twenty-two long spines symmetrically arranged. Second 
joint of exopodite of uropod nearly three times as long as paddle. Dilated base of 
dactylus of raptorial claw truncated on its outer edge, and not notched. Endopodite of 
uropod with five spines on its dorsal surface. 
