Cama. 



112 



Camarella congesta. {Atrypa congesta.) Hall, Geology 



of the Fourth District of New York, 1843, 

 page 71, fig. 16, 2. Kogers, Geol. Pa. 1858, 

 page 823, fig. 632. (Oonrad in Journal Acad. 

 2, Nat. Sci. Phila., 1842, Vol. VIII, page 265, 

 plate 16, fig. 18.) Clinton formation. — In 

 Perry county, W. Center township, Wag- 

 ner's mill. 000, 1888, Claypole's collec- 

 tions, 60-1 (two specimens) from Clinton 

 & Salina. — Va^ c. 



Camarella extans. {Atrypa extans.) Emmons' Geology 



of Northern District of New 

 York, 1842, fig. 106, 6. Trenton 

 formation. See fig. &c., under 

 the old name Triplesia extans. 

 lie. 



Camarella hemiplicata. {Atrypa hemiplicata. Hall, 



Pal. N. Y. Vol. 1, 1847, Trenton.) Em- 

 mons' Amer. Geology, Vol. 1, part 2, page 

 190, plate 10, fig. 7, a, h^c. Ventral (larger) 

 valve has broad fold, in folds which do not 

 reach the beak, etc.; somewhat variable; 

 ventral valve usually very full. Confined to 

 Em./\.GjS55^j^^ 7r67iif(9^ limestone formation. Emmons. 

 -See Oat. 00, p. 232, Spec. 210-52 (poor condition); 210-97c, 

 Coll. at Bellefonte, Centre Co., from Trenton limestone. lie. 



Camarella nucleus. {Atrypa nucleus. Hall, Pal. N. Y. 

 He ^^k^ ..i^^^ .^i^fe.2 Vol. 1,1847, Trenton.) Emmons' Am. 



Geol. I, ii, 189, plate 10, figs. 2, ^, 5, c. 



Like, but smaller than Atrypa extans^ 



^ ^'^'^ and perhaps identical. — Trenton^ lie. 



Camarium typum. See Catalogue 00, p. 234, Spec. 601- 



12 (three specimens) ; 601-13 (four fragments); 605-2 (twelve 



fragments); in coll. at Orbisonia, from Lower Helderlerg. VL 



Camarophoria .^ wortheni. (King's genus, 1844, Ann. & 



^7 „ 39 Mag. N. H., Vol. 



14. — Ehynchonel- 

 la wortheni.) Hall. 

 Trans. Alb. Inst. 



£T7i./^.G.ie.55 



