324 



PALjKONTOLOOY of NEW-YORK. . 



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n 



1 



GENERA AND SPECIES. 



9 Orbicula .' subtruDcaU, HcUl. , . 



8 — ? crassa, " 



7 — celata, •• 



1 Leptxna plicifera, " 



2 — incrassata, " 



3 — fasciata, " 



4 — alternata, Conrad . . . 



5 — camerata, " 



6 — deltoidea, " 



7 — tenuistriata, Sotoerby. 



8 — alternistriata. Hall . . 



9 — 



sericca, Sowerby , . , 



— filitexta. Hall. . . . 



— planumbona, *' . . 



— deflecta, Conrad 



— recta, " 



— planoconvexa, Hail . . 



— tenuilineata, Conrad 



— subtenta, " 



— (»/). indet.) 



Orthis costalis, Hall 



— testudinaria, Dalman. 



3 — 



4 — 



5 — 



6 — 



7 — 



8 — 



9 — 

 10 — 

 U — 



12 — 



13 — 



14 — 



15 — 



16 — 



17 — 

 18 

 19 

 20 



1 

 1 

 2 

 3 

 4 

 5 

 6 

 7 

 8 



subxquata, Conrad 



bella-rugosa, " 



disparilis, " 



perveta, " 



equivalvis, /fa// 



fissicosta, " 



tricenaria, Conrad 



plicatelU, Ha// 



pectinella, Conrad 



— ear. semiovalis. Hall 



insculpta, Hall 



dichotoma, '' 



subquadrata, " 



occidental is, " 



— sinuata, " 



— subjugata, " 



— erratica, " 



— centrilineata, " 



Delthyris biforatus, var. lynx, Eieh. 

 Atrypadubia, Hall 



— acutirostra, " 



— plena, " 



— plicifera, " 



— altilis, " 



— cxtans, Conrad 



— nucleus. Hall 



— cuspidata.t " 



Plate and figure. 



Ixxix, 

 Ixxix, 

 Ixxix, 

 iv bis, 

 iv bis, 

 iv bis, 

 5 xxxi, 1 

 ( Ixxix, 

 xxxi A, 

 xxxi A, 

 xxxi A, 

 xxxi B, 

 ( xxxi B, 

 i Ixxix, 

 xxxi B, 

 xxxi B, 

 xxxi B, 

 xxxi B, 

 xxxi B, 

 xxxi B, 

 xxxi B, 

 xxxi B, 

 iv bis, 

 ( xxxii, 

 (Ixxix, 

 xxxii, 

 xxxii, 

 xxxii, 

 xxxii, 

 xxxii, 

 xxxii, 

 xxxii, 

 xxxii. 



7 a, 6 



8 a,b 



Q a, b, e 



1 tt.b 



2 tt,b,c 



3 a,b,c 

 ; xxxi A, 



2 a-/ 



2 a, ft 



3 a-e 



4 a-/ 

 1 a,b, e 

 2a-h 



3 a, ft 



3 a-/ 



4 a-/ 



5 a, ft 



6 a, ft 

 1 a-d 



9 a, ft 

 10 a, ft, c 

 4 a, ft 

 la-/ 

 4 a - e 



2 a-/ 



3 a, ft, e 



4 a, ft, c 



5 a, ft, c 



6 a, ft, e 

 I a,b 



8 a - e 



9 a-g 

 xxxii, 10 a - e 

 xxxii, 11 a,b,c 

 xxxii, 12 a, 6, e 

 xxxii, 13 a, ft 

 xxxii A, 1 a - 



; xxxu A, 

 xxxii B, 



' xxxii B, 

 xxxii c, 

 Ixxix, 

 Ixxix, 

 xxxii D, 

 iv bis, 

 iv bis, 

 iv bis, 

 iv bis, 

 iv bis, 

 xxxiii, 

 xxxiii, 

 xxxiii*. 



2 a-q 



1 a-e 



2 a-t 

 1 a -m 



5o-/ 

 6* a, ft, c 

 I a - u 

 5 

 6 



7 a -« 



8 a-cR 

 9a-d 



1 a,b 



2 a, b, e 

 I a-h 



Page. 



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 138 



Rocks & Groups. 



& 



O Be 



+ 



3 



+ 



+ 



+ 



+ 



4- 



4- 



' Erroneously referred to fig. S on page 289. f •^- eutpidata figured on supplementary plate xxxiii*. 



