122 HYDROZOIDS AND CORALS. 



It is with considerable doubt that the Keokuk forms are 

 referred to White's 8. harveyi, but the same species occurs in 

 the Burlington limestone. In consequence, therefore, of the 

 inability to make out any marked distinctions between the two 

 forms, it seems advisable to refer the Keokuk fossils to S. 

 harveyi. 



Syringopora sp? 



Plate xiv, fig. 5. 



Horizon and locality — Lower Carboniferous, Kinderhook 

 limestone: Kinderhook (Illinois). 



Syringopora multattenuata McChesney. 



Plate xiv, lig. 61). 



Syringopora, multaUenuaia McChesney, 1860: Desc. >Jew Pal.Foss., p. 75. 

 Syringopora multattenuata McChesnej", 1867 : Trans Chicago Acad. Sci., 



vol. 1, p. 2, pi ii, fig. 4. 

 Syringopora multattenuata Meek, 1872: U.S. Geol. Sur. Nebraska, p. 144, 



pi. i, figs. 5a-d. 

 Syringopora multattenuata White, 1877: U. S. Geog. Sur. w. 100 Merid., vol. 



iV, p. 100. 



Corallum occurring in rather large, more or less spherical 

 masses, made up of slender, flexuous corallites, which are long, 

 cylindrical, somewhat radiating and completely separated from 

 one another, except at the points where the connecting tubes 

 are given off; these copulatory protuberances are quite nu- 

 merous, rather slender and closely though somewhat irregu- 

 larly set. Epitheca thick and considerably wrinkled. Tabulte 

 obliquely and irregularly arranged. 



Horizon and localities — Carboniferous, Upper Coal 

 Measures : Kansas City. 



Although the corallum of this species usually forms more 

 or less globular masses from three to six inches in diapaeter, 

 large flattened expansions attaining a size of ten or more 

 inches are occasionally met with. Owing to the peculiar fra- 

 gile character, these masses are seldom found entire, yet the 

 fragmentary pieces are not uncommon. In size the corallites 

 are quite uniform, the diametric measurement being as a rule 

 a little less than one-tenth of an inch. The spaces between 



