6 PROCEEDINGS OF THE ACADEMY OF [Jan., 



Retelea ovalis G. ancl II., Jour. Acad. Nat. Sci., V, 164, pi. 21, f. 52, 1860. 

 Reticulipora dichotoma G. and H., Jour. Acad. Nat. Sci., V, 173, pi. 21, f. 64, 1860. 

 Keticulipora sagena G. and H., Proc. Acad. Nat. Sci., 1860, p. 366; Jour. Acad. Nat. Sci., IV, 



400, pi. 69, flus. 80-32, 1860. 

 Desmatocium trilobatum Gabb. 



The type of the genus and species is only a peculiar shaped sand 

 concretion. 



BRACHIOPODA. 



Terebratula harlani Morton, Amer. Jour. Sci., XVII, 283, 1829; XVIII, pi. 3, f. 16, 1S30. 



Terebrahda fragilis Morton, Amer. Jour. Sci., XVII, 283, 1829, XVIII, pi. 



3, f. 17. 

 Terebratula perovalis Morton (not Sowerbv) = camella Morton, Syn. Org. 

 Rem., 70, var. " B," pi. IX, f. 8, 1834. 



Terebratulina atlantioa (Morton). 



Terebratula atlantica Morton, Jour. Acad. Nat. Sci., VIII, 214, 1842. 

 Terebratulina halliana Gabb, Proc. Acad. Nat. Sci., V., 19, 1861. 



The type of Gabb's species, but not of Morton's. 



Terebratulina floridana (Morton). 



Terebratula floridana Morton, Syn. Org. Rem., 72, pi. 16, f. 7, 1834. 



Terebratella plicata (Say). 



Terebratula plicata Say, Amer. Jour. Sci., II. 43, 1820; Jour. Acad. Nat. Sci., 



VI, 73, pi. 3, figs. 5, 6. 

 Terebratula sayi Morton, Syn. Org. Rem., 71, pi. 3, figs. 3, 4, 1834. 



The specimen figured by Morton, but not Say's type. 

 EOHINODERMATA. 



Pentacrinus bryani Gabb, Proc. Acad. Nat. Sci., 1876, 178, pi. 5, figs. 1, la, lb. 

 Goniaster mammillata Gabb, Proc, Acad. Nat. Sci., 1876, 178, pi. 5, figs. 2, 2a, 2b. 

 Cidaris splendens (Morton). 



Cidarites splendens Morton, Proc. Acad. Nat. Sci., 1841, 132. 



Cidariles armiger Morton, Jour. Acad. Nat. Sci., VIII, 215, pi. II, f. 1. 



Cidaris walcotti Clark, Johns Hopkins Univ. Cir., No. 87, p. 75, 1891 ; U. S. Geol. Sur. Bull., 



97, p. 37, pi. VI, figs. 4a-d, 1893. 

 Salenia tumidula Clark, Johns Hopk. Univ. Cir , No. 87, p. 75, 1891; U. S. Geol. Sur. Bull., 97, 



p. 41, pL XI, figs, la-j, 1893. 

 Salenia bellula Clark, Johns Hopk. Univ. Cir., No. 87, p. 75, 1891 ; U. S. Geol. Sur. Bull., 97, p. 



43, pi XI, figs. 2a-g, 1893. 

 Pseudodiadema diatretum (Morton). 



Cidaris diatretum Mort., Amer. Jour. Sci., XXIII, 294, 1833. 

 Cidarites diatretum Mort., Syn. Org. Rem., 7.5, pi. 10, f. 10, 1834. 

 Pseudodiadema diatretum Clark, U. S. Geol. Sur. Bulletin, 97, pi. 13, f. 1. 



Coptosoma speciosum Clark, Johns Hopk. Univ. Cir., No. 87, p. 76, 1891 ; U. S. Geol. Sur. Bull., 



97, p. 52, pi. 18, figs. la-h. 

 Psammeohinus cingulatus Clark, Johns Hopk. Univ. Cir., No. 87, p. 76; U. S. Geol. Sur. Bull., 



97, p. 55, pi. 20, figs. la-i. 

 Echinobrissus expansus Clark, Johns Hopk. Univ. Cir., 87, p. 76; U. S. Geol. Sur. Bull., 97, p. 



61, pi. 26, figs. la-g. 



