, 
26 ‘“ ENDEAVOUR ” SCIENTIFIC RESULTS. 
5-6 mm. long, with 12-14 segments, which have the distal 
margins, and a sharp dorsal keel, finely serrulate ; remaining 
pinnules similar, but becoming much more slender, longer 
(8-10 mm.), and with more segments (17-18); the sharp, 
serrate dorsal keel is well-marked. Side and covering plates, 
highly developed. First syzygy between 3 and 4; in eleven 
arms of one specimen, but in only one arm of the holotype, a 
second occurs between 5 and 6, and the third is somewhere in 
the region between segments 18 and 27; in the other arms, 
the second syzygy is generally not until after the twentieth 
segment; distally the syzygial interval is at first 6-8, but 
near the tip of the arm it decreases to 4 or 5. Colour (in 
alcohol) yellowish-brown; when dry, the shade is much lighter. 
While this species resembles both C. komachi and C. helene 
in the general character of the arms, the much more numerous 
cirrus joints, the longer pinnules and the markedly conical 
centrodorsal seem to prove it is quite distinct. The genus 
was not previously known from Australian waters. 
Loc.—East of Flinders Island, Bass Strait, 70-100 fathoms. 
Two specimens. 
Family ANTEDONIDi. 
Genus CompsoMETRA, A. H. Clark. 
COMPSOMETRA INCOMMODA (Bell). 
Antedon incommoda, Bell, Ann. Mag. Nat. Hist., (6), ii, 
1888, p. 404. 
Compsometra incommoda, A. H. Clark, Mem. Austr. Mus., 
iv.,,15, LOU jo 792. 
Loc.—South-east of Flinders Island, South Australia, 37 
fathoms. ‘I'wo specimens. 
COMPSOMETRA LOVENI (Bell). 
Antedon loveni, Bell, Proc. Zool. Soc., 1882, p. 534. 
Compsometra lovent, A. H. Clark, Proc. Biol. Soc. Washing- 
ton, xxi., 1908, p. 131. 
None of the specimens of Compsometra are especially note- 
worthy, but they give added weight to the correctness of 
Mr. A. H. Clark’s opinion that there are two distinct species in 
the seas of south-eastern Australia. To judge from the present 
collection, as well as from previous records, C. incommoda 
would seem to be the more southern form, occurring from 
Port Jackson, New South Wales, southward and westward 
