A CONTRIBUTIOX TO THE LOWEE DEVONIAN FauNAS OF MARYLAND 27 



In the collection of Mr. George M. Boeder is to be found the only entire 

 specimen which the writer has seen from Maryland. The agreement with 

 Hall's description is very exact. 



Diameter of shell 6.2 cm.; of aperture 4.75 cm. 



Occurrence. — Oriskany Formation, Eidgely Member. Williams 

 Eoad near Cumberland. 



Collections. — ]\Iaryland Geological Survey, George M. Eoeder. 



Order CTENOBRANCHIATA 



Suborder PLATYPODA 



Superfamily GYMNOGLOSSA 



Family PYRAMIDELLIDAE 



Genus LOXONEMA Phillips 



LOXONEMA FITCHI Hall 



Plate LXXIX, Fig. 7 



Loxoneyna fitchi Hall, 1859, Nat. Hist. N. Y., Pal., vol. ill, p. 296, pi. liv, figs 9, 

 11a, &, 1861. 



Description. — " Shell suljfusiform, very gradually attenuate : volutions 

 seven or eight. Surface unknown." Hall, 1859. 



Volutions broadly arched, wide, suture deeply impressed. A few im- 

 perfect casts which may be from the Helderberg agree well with Hall's 

 description and figures. In the state of their preservation no further 

 features can be observed. 



Occurrence. — Helderberg Formation. Tonoloway. 



Collection. — Maryland Geological Survey. 



Superfamily TAENIOGLOSSA 

 Family LITTORINIDAE 



Genus HOLOPEA Hall 

 Holopea sp. 



Description. — A large specimen, coming from an unknown horizon in 

 the LoAver Devonian, was studied, which evidently belongs to this genus, 

 but whose condition of preservation does not permit identification or de- 



