38 ECHINOIDEA. 
HEMIASTER APICATUS. 
Hemiaster (Rhynobrissus) apicatus, Tenison-Woods, P. L. S. of 
N. 8. Wales, 1880, iv., p. 283, pl. xii. 
Hemiaster apicatus, F. Jeff: Bell, P. L. S. of N. S. Wales, 1884, 
ix., pp. 503, 506 ; id. Voy. Alert, p. 171. 
(a, b) Port Jackson, 7 to 10 faths., types - - Coll. 
Hab. Port Jackson ; Moreton Bay; East Coast of Australia. 
TRIPYLUS (Hemuiaster). 
Tripytus, Phil., 1846, Hrichs. Archiv., p. 347; A. Agass., 
Rev. Ech., iii., p. 588. 
(Not represented. ) 
RHYNOBRISSUS (Hemiaster). 
Ruynosrissus, A. Agass., 1872, Bull. M. C. Z, i.; zd. Rev. 
Ech., iii., p. 590. 
(Not represented.) 
BRISSOPSIS (Hemiaster). 
Brissopsis, Agass., 1840, Oat. Syst. Htyp., p. 16; A. Agass., Rev. 
Kch., ii., p. 854; id. 1. c. iii., p. 598. 
(Not represented.) 
AGASSIZIA. 
Aaqasstzta, Val., 1846, Voy. Venus; A. Agass., Rev, Ech., ii., 
p. 358 ; id. 1. e. 11, p. 594. 
(Not represented.) 
BRISSUS. 
Brissus, Klein, 1734, Nat. Disp. Heh. ; A. Agass., Rev. Ech., 
ii, p. 856; id. lic. iii, p. 596; Gray, Cat. Rec. Ech., 
p. 51 (1855). 
