328 FOREIGN JURASSIC COLLYRITID^. 



Formation. — Jurassic limestone near Kehlheim; age not determined. 



Collection. — Museum at Munich, coll. Count Miinster. 



CoLLYEiTES TABA, DesoT. Syuopsis des Echinides Fossiles, p. 209. 



"Test small, intermediate in form between C. capistrata and C. hicordata, Leske, 

 less triangular than the former, but more contracted behind; posterior ambulacra 

 converge at some distance above the vent, which is nearly entirely visible above." 



Formation. — " Kellovien d'Ueken, pres d'Effingen (Argovie)." 



Collection. — " Moesch ; very abundant." Desor. 



Metaporhinijs Michelinii, Agass. Michelin, Revue et Mag. de ZooL, No. 8, 1854. 



CoLLYKiTES MiCHELiNii. Cotteau, Echinidcs Foss., pi, xl, fig. 5. 



" A large species, rounded before, truncated behind ; the anterior summit very 

 excentral, and occupying the most elevated part of the test, which is prolonged forwards 

 in the form of a rostrum." 



Formation. — " Corallien (Calcaire a chailles) de Druyes et Chatel-Censoir (Yonne)." 



Collection.—" MM. Michelin, Cotteau." Besor. 



Metaporhinus CENSORiENSis, BesoT. Synopsis des Echinides Fossiles, p. 211. 

 CoLLYRiTEs CENsoRiENSis. Cottcau, Echinides Foss., pi. xl, figs. 6, 7. 



This singular urchin resembles the preceding species ; according to M. Cotteau, 

 it is more inflated, and rounder before, but not so much sloped behind; the posterior 

 ambulacra are more flexuous and unite nearer the vent. 



