CATALOGUE OF ECHINIDA. 
45 
purses on the interior of the shell, hearing elongated spines, 
arched at their base ; an internal fasciole surrounds the odd 
anterior ambulacra, and advancing to the base between the 
hinder ambulacra ; subanal fasciole surrounding the anal 
region, and penetrating the concave cornet, at the base of which 
the vent is situated ; peripetalous fasciole none ; ovarial pores 
four ; ocellar pores in a pentagon round the four ovarial poresj; 
the lower surface with elongated spines on large tubercles, with 
internal bags, like those of the back. 
Lovenia, Agassiz & Desor , Ann. Sci. Nat. viii. 11. 
1. Lovenia Hystrix. 
Shell depressed, narrow behind ; dorsal spines very long. 
Spatangus, Savigny , Descrip. Egypt Zooph. t. 7, f. 4. 
Lovenia Hystrix, Agassiz 8$ Desor, Ann. Sci. Nat. viii. 1847, 11, 
vi. t. 16, f. 16. 
Hab. Red Sea. 
a, b. Red Sea. Presented by J. Burton, Esq. 
2. Lovenia elongata. 
Shell depressed, narrow ; dorsal spines few. 
Spatangus elongatus, Gray in Eyre , Discov. Central Australia, i. 
436, t. 6, f. 2, 1845. 
Hab. Western Australia. Port Essington. 
a, b, c. Port Essington. 
This species is very like Lovenia Hystrix, Desor, but is nar- 
rower and more elongate, and the sunken tubercles are much 
less numerous. 
3. Lovenia subcarinata, t. 5, f. 3. 
Shell elongate, narrow ; the lower anterior edge keeled ; 
the lower part of the anterior side, with a few large tubercles 
| placed in two series on each side of. the end of the anterior 
lateral ambulacra ; the side of the under surface covered with 
numerous sunken large tubercles. 
Hab. Philippines. 
a, b, c. Different sizes, two covered with spines, third 
without. Isle of Luzon. Mr. Cuming’s Collection. 
j 3. Breynia. 
Shell solid, thick ; back with large tubercles between the 
ambulacra and peripetalous fasciole, the cups round, thin, not 
prominent into the cavity of the shell ; an internal fasciole 
round the anterior ambulacra ; subanal and peripetalous fas- 
