SYSTEMATIC DESCRIPTIONS SPATANGINA. 63 



broad, low forms of E. ly coper sicus, seen as variations in large collec- 

 tions of that species. 



Eocene, Jamaica, from yellow marl or limestone (probably from Cam- 

 bridge formation), 1 specimen, Mus. Comp. Zool. No. 3235. Maga- 

 zique, Cuba, Dr. Carlos de la Torre Coll., 1 specimen, Mus. Comp. 

 Zool. No. 3232. Cotteau also records the species from Matanzas, 

 Cuba, Coll. Comisi6n del Mapa Geol6gico de Espafia, Madrid. 



Echinolampas clevei Cotteau. 

 (Plate 10, Figures 6, 7; Plate 11, Figures 1, 2.) 



Echinolampas clevei Cotteau, 1875, Kongl. Sven. Vet. Akad. Handl., vol. 13, No. 6, p. 23, 

 plate 4, figs. 1 to 5. Guppy, 1882, Scientific Assoc. Trinidad, Proc., part 12, p. 196. 

 Cotteau, 1897, Bol. Com. Mapa Geol. Espafia, vol. 22, p. 61, plate 19, figs. 4 to 6. 



The following is an extract from the original description of this species : 

 Species of medium size, very elongate, subcylindrical ; upper face high, 

 rounded, subangular anteriorly and posteriorly, marked posteriorly by 

 a vague, attenuated ridge. Lower side cushion-like, somewhat prominent 

 in the posterior interambulacral area, rounded on the borders. The apical 

 disk is very excentric anteriorly. Ambulacral areas wide, petaloid, not 

 costate, contracted at their lower extremity, which is slightly open, espe- 

 cially in the anterior pair II and IV, unequal. The anterior ambulacrum 

 III is narrower and nearly straight, the anterior pair II and IV relatively 

 very short; the posterior pair I and V are distinctly longer. Poriferous 

 areas are not depressed, formed of unequal pores, the internal rounded, 

 the external elongate, narrow, and oblique. The poriferous areas cease 

 to be petaloid a long distance from the border. Tubercles scrobiculate, 

 scattered, abundant. The peristome is small, subpentagonal, appearing 

 to open flush with the test. Periproct little developed, oval, subtriangular, 

 wholly inframarginal. 



A small immature specimen measures 16 mm. in height, 25 mm. in 

 length, and 18 mm. in width. A large specimen measures 25 mm. in 

 height, 49 mm. in length, and 35 mm. in width. An exceptionally large 

 specimen, plate 11, figures 1 and 2 (No. 115374), which is evidently the 

 one especially mentioned by Cotteau for its size, measures 50 mm. in 

 height, 77 mm. in length, and 55 mm. in width. This species, by its 

 elongate form and extreme roundness of outline and height, differs from 

 other species of the genus occurring fossil in the West Indies. It also 

 differs by its short ambulacral petals and by its small periproct. 



Eocene, St. Bartholomew limestone, St. Bartholomew, Guppy 

 collection ex Cleve, 2 specimens, cotypes, labeled as the originals of 

 Cotteau's plate 4, figures 1 and 5, U. S. Nat. Mus. No. 115419. St. 

 Bartholomew, Guppy collection ex Cleve, cotype, the original of 

 Cotteau's plate 4, figure 4, 1 specimen, U. S. Nat. Mus. No. 115374. 

 Cotteau says that he also had material of this species from the Upsala 

 Museum, which probably was the original of two of his figures. He 

 later records clevei from Matanzas, Cuba, the material being in the 

 collection of the Comisi6n del Mapa Geol6gico de Espafia, Madrid. 



