1916. | S. Kemp : Notes on Crustacea Decapoda. 401 
not marked correspondingly. The inferior portions of the sixth 
somite were tinged with blue and there were pale pink chromato- 
phores on the hook-like process on the third somite. The outer 
maxillipede was dark red, the first legs tinged with red and the 
remainder transparent. 
Not infrequently specimens of a uniform bright green colour 
were met with. In these the rostral setae were also bright red, 
but the eye-spots were merely of a darker green surrounded by 
narrow bands of black and white. In the weed among which 
it is found T. armatum is very inconspicuous, extending its body 
almost perfectly straight and holding tightly to the stem. 
9267 Nandapam, Ramnad Dist., . Hornell. One. 
TO ‘ a 
S. India, 3 fms. 
2265 Port Blair, Andamans, S. Kemp. Nineteen. 
2-5 fms. 
9268 Burma coast, 8 fms. ‘ Investigator.’ One, larval. 
10 t=) 
Balss (loc. cit. supra) has recently recorded this species from 
Japan, thereby making a considerable increase in its known geo- 
graphical range. 
Genus Gelastocaris, Kemp. 
Gelastocaris paronae (Nobili). 
1914. Gelastocaris paronae, Kemp, Rec. Ind. Mus., X, p. 107, pl. v, 
figs. I-II. 
An additional specimen of this curious species was obtained at 
Port Blair. It was dredged in 5 fathoms of water along with the 
sponge Petrosia testudinaria, Lamarck.' When alive the indivi- 
dual was remarkable for its strangely depressed form, the carapace 
and abdomen being so much flattened that it resembled an Isopod 
of the genus Jdotea. Incolour the specimen was pale pink through- 
out with a speckling of darker pink chromatophores on the anten- 
nal scale and tail-fan and at the sides of the carapace and abdo- 
men. The Petrosia was of a similar pink shade and the coloura- 
tion is doubtless protective. 
The specimen is a male, about Io mm. in length, and, except 
for the thickened outer antennular flagellum, differs little from the 
two females previously recorded; in lateral view, however, the 
carapace is less strongly arched anteriorly. 
9568 Port Blair, Andamans, 5 fms. S. Kemp. One. 
Genus Hippolysmata, Stimpson. 
1914. Hzippolysmata, Kemp, Rec. Ind. Mus., X&, p. 112. 
1915. Exhippolysmata, Stebbing, Ann. S. African Mus., XV, p. 94. 
Stebbing has recently proposed to separate Hippolysmata 
ensirvostris, along with a closely allied S. African form, as a distinct 
genus under the name Exhippolysmata. The characters employed 

1 JT am indebted to Dr. Annandale for this determination. Mr. Southwell 
informs me that the specimen from the Ceylon Pearl banks, recorded in the paper 
cited above, was also found on this sponge. 
