BRITISH FOSSILS. 



Decade I. Plate V. 



SALENIA PERSONATA. 



[Genus SALENIA. Gray. (Sub-kingdom Radiata. Class Echinodermata. Order 

 Echinidra. Family Cidarites.) Body subglobose. Interambulacral segments very broad, 

 bearing (few) primary imperforate tubercles ; ambulacral areas very narrow, without 

 primary tubercles ; pores in single file ; summit crowned with a complicated anal disk, 

 composed of five ovarian and five ocular plates, and one supra-anal plate ; anus excen- 

 trical ; spines of two orders, the primaries long, slender, and cylindrical. regard the 

 genera Peltastes and Goniophobus of Agassiz, as sections of the genus Salenia.] 



Synonyms. Echinus petaliferus (Desmauest, MSS.)? Defrance, in 

 the 37th volume of the Diet, des Sciences Naturelles, p. 101 (1825) [it had 

 previously been clearly figured, but without a name, by Parkinson, in the 

 3rd vol. of " Organic Remains," pi. 1, f. 12]. Echinus areolatus, Konig. 

 Icones Sectiles (1825), Fig. 100 (wrongly so named, not being the species of 

 Wahlenberg). Cidaris scutiger, Munster in Goldfuss, Petref Germ., 

 p. 120., pi. xlix., f. 4 (1826). Salenia scutiger. Gray, ZooL Proc, part 3, 

 for 1835, p. 58. Echinus {Salenia) petaliferus^ Roemer, Yerst. Nord 

 Deutschen Kreide-Geb, (1840), p. 30 Salenia scutigera, Agassiz, Echin. 

 Suiss., ii., p. 89, t. 23, f. 1-5, and Monog. des Salenies, p. 12, t. 2, f. 1-8? 

 Salenia personata. Agassiz (who states that it is the MSS. Cidaris per" 

 sonata of Defrance), Monog. des Salenies, p. 7, f. l'"8. Salenia petali/era, 

 Agassiz, Monog. des Salenies, p. 9, t. 1, f. 17-24. S. pei^sonata and S. 

 scutigera, Agassiz and Desor, Cat. Raisonne des Echinides, Annales des 

 Sc. Nat., 3rd series, ZooL, vol. vi., p. 341 (1846). 



Probable variety. Salenia gihba^ Agassiz, Monog. des Salenies, p. 13, 

 t. 2, f. 9-16. 



Diagnosis. S. testa suborbiculari, dorso subdepresso, area anali magna, 

 assulis Icevigatis, suturis assularibus punctatis, punctis parvis circidaribus 

 seu triangularibus, margines assularum vix denticulantibus ; areis inter- 

 ambulacralibus in medio late granulosis. 



In lettering onr plate Salenia personata, we follow the nomenclature 

 of the general catalogue of Echinidse by Agassiz and Desor, but do so 

 not without doubts of the justice of the nomenclature therein proposed, 



[l.V.] ' F 



