86 
Memoirs of the Indian Museum. 
[Vou. IV, 
The principal distinctions between the two specimens are as follow :-— 
Burmese Coast. 
1. The median carina of the rostrum is very 
indistinct. 
2. There are seven teeth on the raptorial 
dactylus (one dactylus only examined). 
3. The anterior lateral lobe of the sixth thoracic 
somite is nearly as broad as the posterior. 
4. The submedian carinae of the fourth ab- 
dominal somite terminate in spines. 
5. ‘The submedian carinae of the sixth ahdominal 
somite are bicarinate and there are three carinae 
between them. 
6. ‘The carinae which terminate in the submedian 
teeth of the telson edge are proximally bifurcate. 
7. Theteis no praelateral denticle on the margin 
of the telson. 
8. On the external edge of the basal segment 
of the outer uropod there are ten movable spines. 
Japanese Coast. 
1. The median carina of the rostrum is distinct. 
2. There are six teeth on the raptorial dactylus. 
3. The anterior lobe of the sixth thoracic somite 
is very much narrower than the posterior. 
4. The submed:an carinae of the fourth abdo- 
minal somite do not terminate in spines. 
5. The submedian carinae of the sixth abdo- 
minal somite are entire and there is only a single 
carina between them. 
6. The carine which terminate in the sub- 
median teeth of the telson edge are not bifurcated 
proximally. 
7. ‘there is a very conspicuous praelateral den- 
ticle on the margin of the telson. 
8. On the external edge of the basal segment of 
the outer uropod there are seven movable spines. 
The specimens examined do not show any distinctive colouration. 
We are indebted to Mr. Alan Owston for the specimen from the Japanese coast :— 
S044 
w 
Okitsu, Suruga Gulf, Japan. 
A. Owston. Ig, 65 mm. 
For the opportunity of describing and figuring the only known Indian example 
of this scarce species I have to thank Mr. A. Patience who has kindly permitted me to 
examine the specimen obtained on the Burmese coast by Messrs. Simpson and Rudmose 
Brown. ‘This individual is a male, 31°5 mm. in length. 
Miss Rathbun records a specimen 87 mm. in length. 
Squilla costata was originally described from Japan (De Haan) and, except for the 
specimen from the Burmese coast which is mentioned above, the few examples that 
have since been found were all obtained on the coasts of that country. The species is 
known from Wakanoura and Nagasaki (Rathbun) and from Misaki (Fukuda). 
Squilla multicarinata', White. 
Plate VI, figs. 73—76. 
White, List Crust. Brit. Mus., p. 84 (stme desc.) 
White, Proc. Zool. Sec., p. 144, pl. vi, figs. 1, Ia. 
White, Ann. Mag. Nat. Hist. (2), IV, p. 381. 
Squilla muiticarinata, Miers, Ann. Mag. Nat. Hist. (5), V, p. 20. 
Squilla multicarinata, Bigelow, Proc. U. S. Nat. Mus., XVII, p. 511. 
Squilla multicarinata, Nobili, Boll, Mus. Torino, XVIII, No. 455, p. 38. 
32, 
Squilla multicarinata, 
Squilla multicarinata, 
Squilla multicarinata, 
1847. 
1848. 
1849. 
1880. 
1894. 
1903. 
This species is allied to Sguilla costata, but in addition to the possession of a three- 
segmented mandibular palp, is still more profusely carinate, the entire dorsal surface 
of the animal being closely ribbed. 
1 See addendum, p. 196, 
