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114 ‘* HNDEAVOUR’”’ SCIENTIFIC RESULTS. 
while at the third plate of ambulacrum IV it is 46 mm.; the 
sixth or seventh ambulacral plate is about on a level with 
the genital pores. Another specimen is remarkable in that 
four genitals are developed as madreporites ; to judge from 
the position of the anus they are genitals 1, 2, 4 and 5; each 
genital plate except 2 has two genital pores, so there are 
nine such pores altogether. In neither of these exceptional 
specimens is there any ocular insert. The same is true of 
the largest normal specimen, but there are 6 specimens in 
which ocular I is more or less broadly insert. Eight speci- 
mens. 
Locs.—Ovyster Bay, Tasmania, 20-40 fathoms. This speci- 
men has been selected as the holotype. 
Six miles east of Cape Hawke, New South Wales, 47-50 
fathoms. 
Eight miles east of Sandon Bluffs, New South Wales, 35-40 
fathoms. 
SALMACIS SPHHROIDES (Linné). 
Echinus spheroides, Linné, Sys. Nat., 10th ed., 1758, p. 664. 
Salmacis spheroides, Lovén, Ech. Linn., 1887, p. 69. 
These specimens range in diameter from 40 to 80 mm.; the 
height ranges from .65 to .75 h.d. The colouration is excep- 
tionally red, the actinal primaries in particular being bright, 
almost vermilion, red with several bands of white ; abacti- 
nally, however, the primaries, even in the reddest specimen, 
are green or greenish at base. Seven specimens. 
Loc.—Twenty miles north-north-east of Double Island 
Point, Queensland, 29-30 fathoms. 
SALMACIS VIRGULATA (L. Agassiz and Desor). 
Salmacis virgulata, L. Agassiz and Desor, Ann. Sci. Nat., 
Zool., vi., 1846, p. 359. 
The specimens without definite locality are large, typical 
examples of this species, showing little or no trace of the 
horizontal sutural furrows of S. alexandri: they measure 
75 and 90mm. h.d. respectively. The specimen from off 
Double Island Point, Queensland, is much smaller (only 48 
mm. h.d.) and has the sutural furrows well marked ; its 
most striking feature, however, is the colouration of the 
primary spines, which at first glance seem to be whitish with 
