CRUSTACEA OF THE MERGUI ARCHIPELAGO. Zou 
thickish line of hairs, originating from the base of the fingers. 
The fingers are much shorter than the palm, and their pointed 
tips cross one another; the mobile finger is a little shorter than 
the index and somewhat distorted. The ambulatory legs are 
very short, the oval meropodites are but little longer than broad, 
and are flattened, smooth, and unarmed. The short carpopodites 
and propodites are equally smooth, and the quadri-unguiculated 
dactylopodites are very short. 
The upper surfaces of the carapace and of the anterior legs are 
marked with some marginate spots. 
Dimensions of an adult specimen :— 
millim 
Weneunot cephalothorax. ... 20 5..6+... sce es 102 
PETE AG UPON SANG o 0.85 cierto we tin pa doe Wie so die oa 8 
Wemoth ot larger chelipede...............ds--- 25 
Wemenbla Oi CArPOPOGItE.5 6. gcse. senses es cees 43 
A TrevallnwOde SAINT ON sais 6 soak cesses ayia 6) cine sees. 4) 9) 2 oyend 0% 3} 
WemeciOk MAM, sas 5s cae Series eon cis a ss apeuee 15 
HMmeACtMOL SAME! 6.5/6. $6 hs ccig nes bs 6 aes dee om bm Ae 
Hore PANT ooh. cs acs ealst one & 6s os ene we 8s it 
Porcellana picta was originally found at Hongkong as a parasite 
on Pennatule. 
I am unable to determine wherein Porcellanella triloba, White 
(Voyage of H.M.S. ‘ Rattlesnake,’ Appendix, p. 394, pl. v. fig. 2), 
differs from P. picta. Haswell’s short description of the former 
(Catalogue of the Australian Stalk- and Sessile-eyed Crustacea, 
p. 149) is wholly applicable to the latter. Itis therefore probable 
that the two forms may prove to be identical, and in that case 
the name of P. triloba has priority. 
Subgenus Potyonyx, Stimps. 
127. Porcettana EvpHROsYNE, n. sp. (PI. XV. figs. 1-3.) 
A fine adult female specimen, without eggs, was found by 
Dr. Anderson, living along with an Annelid in its tube. This 
new species is doubtless closely allied to Haswell’s P. transversa 
from the eastern Australian coast ; and it is a remarkable fact 
that this species was also found in the siphons of an Aspergillum, 
so that the affinity of these two Porcellane is even proued by 
their similar habits of life. 
This species undoubtedly belongs to Stimpson’s subgenus 
