220 New Species of Fuss Ih from Ohiu. 



one inch, and the .strong antero-lntcral arm on one, to more than an inch ; 

 but no evidence of bifurcation a]3pears. 



The inequality of the antero-lateral arms will be the distinct- 

 ive feature of the species, as the form of the calyx is similar to 

 many other species of the gronp. 



Formation and Locality. — In the Maxville limestone (shaly 

 portion), at Newtonville, Ohio. 



BRYOZOA. 

 Synocladia rectisiyla, n. sp. 



Pal. O., Vol. Ill, Plate 9. Figs. 9 and 10. 



Bryozoum growing in spreading funuel-l'ormed fronds, rising from a 

 rooted base and widely diverging in their upward growth ; the inner surface 

 of the cup bearing pores. Pays straight and somewhat rigid in their up- 

 ward direction, with frequent bifurcations, which are not abrupt with ra- 

 pidly diverging branches, but rise gradually from a thickened space, and 

 gradually diverge as slender but constantly thickening rays until the normal 

 strength is attained. 



The rays are slender, rather closely arranged ; about six of them occupy- 

 ing the space of a fourth of an inch in the widest parts, and from eleven to 

 twelve maj' be counted in the same space in the most crowded parts. 



Transverse dissepiments nearly as strong as the longitudinal rays, and 

 often slightly arched upwards between them in the wider parts, but more 

 frequently directed obliquely upward in passing from one ray to the next, 

 and very often directed upward to the right from one side of a ray, and to 

 the left on the opposite side ; but they are generally direct in the more 

 crowded portions. The middle of the ray on the poriferous surface is ele- 

 vated or roof-like, with a central crest or ridge bearing distant nodes ; a 

 single row of large pores is arranged on each side, which are visuallj^ less 

 than their own diameter apart, and more or less alternating with those 

 of the opposite side. From two to three pores occupy each side of each 

 fenestrule, and the pores are margined by an elevated lip, which on unworn 

 spaces are very prominent. From one to three similar pores, although some- 

 times of smaller size, occupy the surface of each dissepiment. Non-porifer- 

 ous surface not observed. 



This species is somewhat similar to S. biserialis, Swallow 

 (Trans. St. Louis Ac. Sci., Vol. 1, p. 179), as identified and 

 figured by Mr. F. B. Meek (Final Eept. of U. S. Geol. Surv. 

 Neb., pi. 7, fig. 5), but differs in wanting the longitudinal 

 nodose ridge between the pores of the dissepiments, and in 

 having only a single row of pores on those parts occupying the 



