Fauna Associated with Crinoids of Tropical Coral Reef, etc. 85 
Measurements of Torres Straits specimens (a female with eggs): Length of 
carapace 11 mm.; maximum breadth 6 mm.; length of rostrum 4.5 mm.; 
length of chela 15 mm. (of propodite 7 mm. , carpopodite 2 5 mm. , meropodite 
5 mm.) 
Another small male: Length of carapace 6 mm.; breadth 3.5 mm.; length 
of rostrum 2.5 mm.; of chela, 9.5 mm. (propodite 4, carpopodite 1.5, meropo- 
dite 4). 
So far as I can find, there is no description of Galathea elegans White, 
but only the figure. From this, however, I think it is possible to assert 
its community with the other forms under discussion. Balss queries 
his Japanese individual because its chele are more slender and longer 
than those in White’s drawing and because the width of the colour 
bands is different. In my Torres Straits collection, as I have repeatedly 
observed, the width of the bands is a variable feature, so the latter 
point need not trouble us. The discrepancy of the chelz is likewise to 
be explained by variation and possibly, to a certain extent, by the 
draughtsman’s error. 
I have taken the opportunity of comparing my series with a specimen 
obtained by Dr. Willey in New Britain and identified by Mr. L. A. 
Borradaile as G. elegans. This certainly differs distinctly from the 
commensal of Comanthus in the following particulars: It has a broader 
but rather shorter rostrum with more (9) lateral denticles. The eyes 
are larger, the transverse furrows on the dorsum not so well developed, 
hairs are almost absent on the greater part of the carapace but present 
on the rostrum. Here they are arranged in just the manner charac- 
teristic of the animals from the Torres Straits. This individual seems 
to come nearer to that described by Balss from Japan. 
Galathea inflata sp. n. (Plate 1, Fig. 7.) 
A small galatheid with rather broad and swollen carapace narrowing con- 
siderably anteriorly; rostrum of medium length with 3 sharp spines on each 
side; carapace with very few hairs, gastric region without spines, anterior 
transverse ridges broken up and surface covered with scales. Merus of third 
maxilliped with 3 spines internally, 2 externally. Merus of ambulatory limbs 
with about 9 spines on upper border. 
Commensal with crinoids, Murray Island, Torres Straits. 
With eggs, length of carapace to tip of middle spine on rostrum, 7 mm.; 
breadth 5 mm.; length of rostrum 2.5 mm. 
The carapace is traversed by only 7 or 8 traverse grooves, but posteriorly 
incipient grooves make their appearance between the complete ones at the 
lateral extremities of the segments. The cervical groove is deep and con- 
tinuous; on each side of it the traverse ridges are broken up into prominent 
scales. The external border of the cephalothorax has about 7 strong spines 
on each side. 
The rostrum is broad and of medium length. The central spine is long and 
stout; on each side are two others, almost as well developed, and a third at 
the level of the eye which is shorter and weaker. The surface is covered with 
small scales. 
