CATALOGUE OF ECHINIDA. 
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* Hinder end with two linear notches. 
4. Echinodiscus inaurita. 
Echinoglycus inauritus, Van Phelsum , 34. 
Echinodiscus inauritus, Leske ap. Klein , 202 ; Gray , Ann. Phil. 
1825, 6. 
Echinus planus, Humph. 37, t. 14, f. f. 
Placenta laganum magus, Klein , GaU. § 85, 92. 
Oursin double entaille, Bose. Diet. H. JV. xxiv. 281. 
Echionanthus, Seba, Thes. iii. t. 15, f. 3, 4 ; Cap. Eth. t. 152, 
f. 1, 2. 
Scutella bifissa, LamTc. Hist. iii. 281 ; Eth. t. 152, f. 1, 2 ; Des- 
long. E. M. ii. 676 ; Blainv. D. 3. JV. xlviii. 224. 
Scutella bifissa, a, Desmovl. Tab. Syn. 226, No. 12, var. a. 
Scutella inaurita, Blainv. D. 3. N. lx. 201 ; Zooph. 200 ; Agass. 
Prod. 188. 
Echinus inauritus, a, Gmelin , S. N. 3199. 
Lobophora bifissa, Agassiz , Mon. Scutelles, ii. 67, 147, 1 . 13, f. 2-6, 
1. 14, f. 1, 2 ; Agassiz da Desor, 1. c. 136. 
Hab. Zanzibar, Rousseau. Red Sea, Savigny. 
a , b. One with spines. 
c, d, e,f. Various sized, without spines. Mauritius. Pre- 
sented by Lady Frances Cole. 
Var. 1. 
Scutella aurita, Blainv. D. 3. JV. lx. 201 ; Zooph. 200 ; Agassiz , 
Prod. Echin. 188. 
Echinoglycus auritus, Van Phel. 34. 
Echinus auritus, Gmelin , 3. JV. 3189. 
Echinodiscus auritus, Leske ap. Klein , 202 ; Gray, Ann. Phil. 
1825, 6. 
Echinus acoritus, Expl. Ency. Meth. t. 151, f. 5, 6. 
Echionanthus maximus, 3eba, Thes. iii. t. 15, f. 1, 2. 
Scutella bifissa, var. 2, Lamk. Hist. iii. 282 ; Eth. t. 151, f. 56. 
Scutella bifissa, y, Desmovl. Tab. Syn. 228, var. c. 
Lobophora aurita, Agassiz , Mon. Scutelles , ii. 70, 1. 13, f. 1, t. 14, 
f. 3, 7, 147 {Favanne, t. 58, f, c. 1) ; Agassiz da Desor , 1. c. 
136. 
Hab. Red Sea. 
a. Young, broken. Red Sea. Presented by M. Petit. 
b. Adult, broken. 
