TYPE SPECIMENS OF PALEOZOIC FOSSILS 275 



Orthothetes chemungensis var. arctostriatus Hall 



1682 3-Z&2- HYPOTYPE Strophomena arctostriata HalL 



Geology of New York; report on 4th district. 1843. 

 p. 266. 



Streptorhynchus chemungensis var. arc- 

 tostriata Hall. Paleontology of New York. 1867. 

 v. 4, pi. 9, fig. i. 



Hamilton shales Canandaigua lake, N. Y. 



R. P. Whitfield and J. W. Hall, coll. 1858 



1683 -1-ai.a. HYPOTYPE Orthisina arctostriata Hall. i3th 



annual report of the New York state cabinet of natural 

 history. 1860. p. 81, fig. 2. 



Hall. Paleontology of New York. 1867. v. 4, pi 9, 

 fig. 2. 



Hamilton shales Canandaigua lake, N. Y. 



R. P. Whitfield and C. Van Deloo, coll. 1858 



1684 i^a. HYPOTYPE Hall. Paleontology of New York. 1867. 



v. 4, pi. 9, fig. 7. 



Hamilton shales Canandaigua lake, N. Y. 



C. A. White and C. Van Deloo, coll. 1864 



1685 J-^s. HYPOTYPE Hall. Paleontology of New York. 1867. 



v. 4, pi. 9, fig. ii. 



Hamilton shales Canandaigua lake, N. Y. 



C. A. White and C. Van Deloo, coll. 1860 



Orthothetes hydraulicus Whitfield (sp.) 



1 686 -af HYPOTYPE : HYPOPLASTOTYPE Streptorhynchus 



hydraulicum Whitfield. Annals of the New York 

 academy of sciences. 1882. 2:193. 



Orthothetes hydraulicus Grabau. Geologi- 

 cal society of America bulletin. 1900. v. u, pi. 22, fig. 

 la, ib. 



Manlius limestone Erie county, N. Y. 



A. W. Grabau, coll. 



1687 z^gA. HYPOTYPE : HYPOPLASTOTYPE Grabau. Geological so- 



ciety of America bulletin. 1900. v. n,pl. 22, fig. ic. 

 Manlius limestone Erie county, N. Y. 



A. W. Grabau, coll. 



