238 PEOr. p. M. DTJ]SrCAT!f S REVISION OP THE 



fimbriated like tlie buccal, otters disciferous ; within the petals 

 the tentacles are broad, compressed, lobed, beyond simple ; buccal 

 tentacles pedicellate. Anal plates large, often less than eight, 

 and projecting. 



Fossil. Tertiary : JN". America, "West Indies. 



Becent. Florida, Grulf-stream, Caribbean Islands, Peru, Panama, 

 aulf of California, 36-391 fms. 



Agassizia gihherula, Cott., is a lapsus calami, it is a ScMzaster. 



Grenus Moiea, A. Agassiz, 1872, Revision of the Echini, p. 365. 



Syn. Moera, Michelin, 1855 ; Liitkeu, 1863 (pub. 1864), Yid. 

 Medd. f. Nat. For. i Kjob. p. 123. 



Test moderately high, thin, tumid abactinally and rounded 

 from side to aide actiually. 



Apical system subcentral, with two of the basals perforated 

 for genital ducts. 



Ambulacra resemble narrow and deep slits starting from the 

 summit ; the anterior notches the front of the test and the 

 groove is continued to the peristome. Coronal plates tumid, 

 except near the sutures. 



Peristome excentric in front, semilunar, and with a projecting 

 posterior lip. Periproct on the truncated posterior surface. 



A peripetalous fasciole clings to the very edges of the deep 

 ambulacral grooves. A latero-anal fasciole. Tubercles small. 

 The anterior ambulacrum is sometimes divided, and all the ambu- 

 lacra form broad projections on the inside of the test. 



Fossil. Miocene : Sind. Post-Pliocene : S. Carolina. 



Recent. Eed Sea, Zanzibar, West Indies to N. Carolina, Cali- 

 fornia, 60 fms. 



Subgenus Moieopsis, A. Agassiz, Report * Challenger ' JEchin. 

 p. 205, pi. xxxvi. figs. 4-7 (1881). 



Test high, cordate, the high incurved posterior surface extending 

 inf eriorly into a backward, prominent and well-developed beak. 



Anterior ambulacrum shorter than the antero-lateral and 

 longer than the very short posterior ambulacra ; all are petaloid. 

 The anterior ambulacrum is the broadest and the postero-lateral 

 are very small. The anterior ambulacrum has a petaloid end 

 which is in the shallow anterior groove. 



The peripetalous fasciole is small, and the latero-anal is well 

 developed and passes from the peripetalous fasciole, about half- 

 way down the antero-lateral petal, and crosses the side of the test 



