8 AUSTRALASIAN ANTARCTIC EXPEDITION. 
than broad; brachials beyond the third syzygy nearly 
or quite as long on the longer side as broad; brachials 
before the third syzygy with an abruptly elevated 
spinous patch in the distal portion of the dorsal surface, 
or with the distal edge everted and much produced ... Florometra mawsoni, sp. 0. 
6* First pinnule (P,) composed of segments which, except for the basal, 
are much elongated. 
c' Genital pinnules with the second and third segments greatly 
expanded, forming a broad chamber (2), or with the second-sixth 
segments broadened, most so on the second-fourth and less so on 
the fifth and sixth (3); arms about 65 or 70 mm. long; cirri 
with 28-35 segments, few or none of which are appreciably longer 
than broad... oes oa a ae es aa ... ILsometra vivipara. 
c? No expansion of the segments of the genital pinnules. 
d' Cirrus segments without dorsal processes, except for the 
opposing spine; about XLV cirri, which are closely set on a 
low rounded conical centrodorsal; elements of the division 
series and brachials smooth _ ... as ue ste ... Thaumatometra nutriz. 
d? Shorter segments in the outer half or two-thirds of the cirri 
sharply carinate dorsally with prominent dorsal spines; 
about XXX cirri, which are arranged in ten crowded columns, 
two beneath each radial, on a long sharply conical centro- 
dorsal; elements of the division series and lower brachials 
with very spiny edges and numerous fine spines on the dorsal 
surface; arms 30 mm. long; cirri with 20-23 segments, 
7 mm. long et 3, aN ss Pe ee ... Eumorphometra concinna. 
IV.—DESCRIPTION OF MATERIAL SUBMITTED 
FOR REPORT. 
Family AnveDontpAE Norman (emend. A. H. Clark). 
Sub-family HELIOMETRINAE A. H. Clark. 
Genus PRomacuocrinus P. H. Carpenter. 
PROMACHOCRINUS KERGUELENSIS P. H. Carpenter. 
Localities. —Station 1, 354 fathoms, December 22, 1913 (thirty-six); Station 2, 
318 fathoms, December 28, 1913 (seven); Station 3, 157 fathoms, December 31, 1913 
(three); Station 8, 120 fathoms, January 27, 1914 (two); Station 9, 240 fathoms, 
January 28, 1914 (five); Station 10, 325 fathoms, January 29, 1914 (three); Station 12, 
110 fathoms, January 31, 1914 (eight). 
Distribution Shores of the Antarctic continent, and also Heard Island, 
Kerguelen, and South Georgia. The bathymetric range is from 10 to 354 fathoms. 
This is the commonest and most widely distributed, and also the largest, of the 
Antarctic crinoids. 
