240 The Ohio Journal of Science [Vol. XVII, No. 7, 



Found in the Euphemia dolomite, in the Jackson quarry, 

 about two miles south of Covington, Ohio. Differing from 

 Lampterocrinus inflatus, from the Racine dolomite of Wisconsin 

 and Illinois, in its much smaller size and in the less conspicuous 

 elevation of the inflated part of the tegmen on the left side of 

 the posterior interambulacral area. 



Habrocrinus benedicti, Miller. Plate X, Figs. 5A, B. 



1894. Saccocrinus laencdicti, Miller, 18th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 



p. 283, pi. 5, figs. 1. 2. 

 1908. Habrocrinus benedicti, Slocom, Field Columbian Mus., 2, Geol. Ser., p. 295, 



pi. 87, figs. 6, 7. 

 1902. Periechocrinus chicagoensis, Weller, Bull. Chicago Acad. Sci., Nat. Hist. 



Surv., 4, p. 131, pi. 13, figs. 7, 8. 



Basals, three; radials, five, forming a single transverse row along 

 with the first plate of the anal interradial area. Each radial followed 

 by two costals; the first, hexagonal; the second, pentagonal, leaving 

 room for distichals, but not for palmers before reaching the base of the 

 free arms. At these ann bases the upper part of the dorsal cup projects 

 strongly as in Habrocrinus benedicti. Traces of ornamentation, similar 

 to that characteristic of the latter species, remain. The general appear- 

 ance of the specimen, including that of the base, is similar to Habrocrinus 

 chicagoensis, as figured by Weller. 



Found in the lower part of the quarry west of the river at 

 the Wire Works, in the eastern part of Muncie, Indiana, where 

 it is associated with HaJy sites labyrinthiciis, Petalocrinus sp., 

 LeptcBna rhomhoidalis , Pentameriis oblongiis, Gypidula rcemeri, 

 Uncinidus stricklandi, Platyceras niagarense, Phanerotrema occi- 

 dens, and Calymene celebra. It underlies a horizon, consisting 

 of about a foot and a half of clay shale and very thin bedded 

 limestone, in which there is a recurrence of the Waldron fauna, 

 including the following species: Duncanella borealis, Favosites 

 forbesi-occidentalis, Favosites spinigerus, Hallopora elegantida, 

 Diamesopora osciilum, Trematopora singidaris, Eucalyptocriniis 

 sp., A try pa reticidari-newsomensis, Aiiastrophia intcrnascens, 

 Camarotcechia acinus, Leptcena rhomboidalis, Rhipidomella hy- 

 brida, Rhynchotreta cuneata-americana, SchucherteUa subplana, 

 Spirifer crispus-simplex, WhitfieldeJIa vitida, Cypricardijtia arata, 

 Diaphorostoma 7iiagarense, and Dalmanites verrucosus. The 

 clay shale containing this recurrence of the Waldron fauna 

 occurs 45 feet below the level of the railroad track following 

 the western side of the river, at the quarry. Its elevation is 

 approximately 900 feet above sea level. 



