ECHINOIDEA. 3l 
MELLITA TESTUDINATA. 
Mellita testudinata, Klein, 1784; Agass., 1841. 
Echinus orbiculus, Zinn., 1758, Syst. Nat. Hil. x., p. 666. 
Mellita testudinaria, Gray, 1851, P. Z S., Lond., p. 86; id. Cat. 
Rec. Ech., p. 22 (1855). 
Mellita testudinata, 4. Agass., Rev. Ech., u1., p. 322; id. 1. ¢.1., 
p. 141; zd. 1. . i., p. 538. 
(a) West Indies - - - - - - Exch. 
Hab. North and South Carolina; Brazil; West India Islands. 
MELULITA (Astriclypeus). 
AsrRictypeus, Verrill, 1867, Notes on Radiata, p.311; A. Agass., 
Rev. Ech., 1, p. 93; iit., p. 538. 
(Not represented. ) 
ROTULA. 
Rotuta, Klein, 1734, Nat. Disp. Ech. ; Agass. § Desor, C. R. 
Eich., Ann. Sc. Nat., vii. (3), p. 188 (1847) ; Agass., 1841, 
Mon. Seut.; A. Agass., Rev. Ech., 1., p. 154; td. iii., p. 540. 
(Not represented.) 
ENCOPE. 
Encore, Agass., 1840, Cat. Syst. Etyp.; Agass. § Desor, C. R. 
Ech. Ann. Se. Nat., vii. (3), p. 187 (1847); A. Agass., 
Rev. Ech., ii., p. 324; td. iii., p. 544; td. Voy. Chail., iii., 
p- 122; Ecuinoezycus, Gray, Cat. Rec. Ech., 1855, 
pp. 24, 25. 
ENCOPE EMARGINATA. 
Echinodiscus emarginatus, Leske, 1778, Klein, Add., p. 136. 
Encope emarginata, Agass., 1841, Mon. Scut., p. 47, tab. 10; 
A, Agass., Rev. Ech., i., p. 325; id. 1. ¢. ii, p. 545. 
(a) New Caledonia ? - - - - - Pres. 
(6) Bahia - - - - - - . - Exch. 
Hab. Brazil; West Indies ; Tropical America. 
