CATALOGUE OF ECHINIDA. 
61 
3, Schizaster Jukesii. t. 3, f. 4. 
The vertex subcentral ; crown strongly keeled between the 
two hinder ambulacra ; the part of the peripetalous fasciole 
between the anterior and posterior lateral ambulacra angularly 
bent up towards the vertex ; the hinder end vertical, regularly 
rounded above over the vent. 
Schizaster Jukesii, Gray , Ann. Mag. N. II. 1851. 
Hab. N. Australia. 
a. Covered with spines. Cape York. Presented by J. B. 
Jukes, Esq. 
** The anterior odd ambulacra slightly impressed. — Brisaster. 
4. Schizaster fragilis. 
Brissus fragilis, Diilen Ac Kor. Zool. Bidr. 280, t. 10, f. 47, 49. 
Schizaster fragilis, Agassiz <$f Besor, 1. c. viii. 22. 
Hab. Shores of Finmark. Mus. Stockholm. 
5. Schizaster gibberulus. 
Shell small, swollen ; ambulacral grooves rather shallow, short, 
broad, ovate, oblong ; genital pores four, the anterior very small ; 
the front ocellar pores in front of the anterior ovarial pores ; the 
front lateral ambulacra rather diverging ; the odd anterior 
ambulacra with a pair of regular oblique pores on each side of 
the groove. 
Spatangus, Savigny , Desc. Egypt. Zooph. t. 7, f. 6. 
Schizaster gibberulus, Agassiz Ac Desor, 1. c. viii. 22. 
Hab. Red Sea. 
a. With a few spines. Red Sea. Mr. Eling’s Collection. 
6. Schizaster Cubensis. 
Ambulacral groove rather deep ; lateral fasciole very narrow, 
arising near the middle of the anterior lateral ambulacra. 
Schizaster Cubensis, DOrbigny ; Agassiz 8$ Besor. 1. c. viii. 22. 
Hab. Cuba, D’Orbigny. 
*** Ambulacra all deeply impressed ; the peripetalous fasciole 
very ■ sinuous , circumscribing nearly the whole ambulacra . — 
Schizaster. 
7. Schizaster atropos. 
Ambulacra in very deep grooves ; the anterior odd groove 
G 
