GUELPH FAUNA IN THE STATE OF NEW YORK 35 



There have also been observed in this material a few fragments con- 

 sisting of alternating rows of large corallites with smaller rectangular ones. 

 This variation has been reproduced by Lambe [pi. 3, fig. 2] and is regarded 

 by him as belonging to Halysites catenularius, his specimen com- 

 ing from the Niagaran of Ontario. 



IVRISGOPORA GoldfuSS. l826 



Syringopora infundibulum Whitfield 



Plate i, fig. 6-9 



Syringopora infundibula Whitfield, Geol. Sur. Wisconsin. Annual Report. 



1877. p. 79 

 Cystostylus infundibulus Whitfield, Geology of Wisconsin. 1882. p. 274, 



pi. 14, fig. 7 

 Cystostylus infundibulus Whiteaves, Paleozoic Fossils. 1884. v. 3, pt 1, p. 2 

 Cystostylus infundibulus Whiteaves, Paleozoic Fossils. 1895. v. 3, pt 2, 



P- 49 

 Syringopora infundibula Lambe, Contrib. Canadian Paleontology. 1899. 

 v. 4, pt 1, p. 53 



A considerable number of nodules of the upper Shelby Guelph are 

 composed of a Syringopora, identical with the above species originally 

 described by Whitfield from the Racine limestone at several points in the 

 vicinity of Wauwatosa and Milwaukee Wis. Whiteaves subsequently 

 reported the species from the Guelph of Hespeler, Elora and Durham. 



The material in hand consists of medium sized, apparently irregular 

 coralla, aggregations of subparallel, straight or somewhat flexuous corallites, 

 which have an average diameter of 3 mm and are from 3 to 6 mm apart. 

 The corallites appear externally as transversely wrinkled, sometimes 

 abruptly thickened tubes, which multiply by lateral budding and are con- 

 nected by transverse, hollow connecting processes, three or four of which 

 are often given off radially in different directions at the same level. 



The spiniform septa and funnel-shaped tabulae, characteristic of the 

 genus, are distinctly shown in natural sections. 



The writers share Mr Lambe's doubt whether this species will prove 

 distinct from the longer established species, S. verticillata Goldfuss, 



