'60 The Ohio Journal of Science [Vol. XXI, No. 2, 



ville member of the Maysville formation at Cincinnati, Ohio. 

 In this species the plates are coarsely pitted. Cyclocystoides 

 nitidus Faber, from the Corryville member, near Transit, Ohio, 

 also is coarsely pitted and may be the same species, differing 

 only in having 24 instead of 30 plates in the ring of large plates. 

 Cyclocystoides munduliis Miller and Dyer, probably from the 

 Corryville at Morrow, Ohio, with 32 plates, probably belongs 

 to the same group. Raymond describes and figures a similar 

 specimen of the same type (Bull. Victoria Memorial Museum, 

 1, 1913, p. 28, Fig. 3, PI. 3, Fig. 4) from the Prasopora zone of 

 the Trenton in the Axe Factory quarry, at Hull, Quebec. This 

 specimen is in the Narraway collection and is described as 

 having the large plates covered with small pits between which 

 are rounded inosculating ridges. For this group of pitted species, 

 typified by Cyclocystoides cincinnatiensis, the term Narrawayella 

 is proposed, in recognition of the great service to paleontology 

 rendered by Mr. J. E. Narraway during his life as a collector of 

 fossils in the rich area surrounding Ottawa, in Canada. For the 

 species described and figured by Raymond, the name Narraway- 

 ella raymofidi is offered. In this group of species the outline of 

 the large plates is cuneate rather than quadrangular, and there 

 is no evidence of spoon-shaped ornamentation on the distal 

 halves of the plates. 



Cyclocystoides minus Miller and Dyer and Cyclocystoides 

 parvus Miller and Dyer, both from Morrow, Ohio, the first with 

 19 plates, the second with 26 plates in the main ring, are not 

 sufficiently understood but may belong to the same group as the 

 preceding. I do not know on what authority these species are 

 cited from the Richmond. 



Agelacrinus arm. — A remarkable specimen figured by Miller 

 and Faber (Jour. Cincinnati Soc. Nat. Hist., 15, 1892, p. 85, 

 PI. 1, Figs. 13-15), from the hilltop at Cincinnati, Ohio, as 

 probably a fragment of Cyclocystoides magnus, consists of a 

 fragment of either Agelacrinus cincinnatiensis or Agelacrinus 

 pileus, exposing both the upper and lower surface of one of the 

 rays, and some of the adjacent plates. The floor plates of this 

 ray overlap each other distally, and along the margins of the 

 floor-plates are seen the basal extensions of the lateral covering 

 plates, as in ray 3 of Figure 5A, Plate 1, accompanying my paper 

 on Agelacrinidce, in the Bull. Denison Univ., 17, 1914, pp. 

 :399-487. See also volume 18, 1916, pp. 340, 341. 



