PALEOZOIC TIME — DEVONIAN. 621 



prisGusCl., Conodonts, Echinocaris Whitfieldi C\., E.? Beecheri CI., S2)athiocaris Emersoni 

 CL, species of Entomis, Goniatites intumescens Beyrich, and many other species of tlie 

 genus, Orthoceras pacator Hall, and other species of 0., species of Bactrites, Bactrites? 

 acicula, HyolUhes, Tentaculites gracilistriatus, Styliolina fissurella Hall, species of 

 MacTocheilus, Platystoma, Pleurotomaria, Loxonema, Bellerophon, Leptodesma, Leiopteria, 

 G-rammysia, Macrodon, Nucula, Ungulina, Lunulicardium, Cardiola (Cardiola retrostriato. 

 abixndaut), PholadeJIa, Lingula, Chonetes, Aulopora, Melocrinus Clarki Williams, also 

 species of fossil wood. The Styliolina limestone, in the Genesee shale below, contains the 

 first representatives of the Naples, or G. intumescens, fauna ; in it, Dawson has identified 

 DadoxyJon (Cordaiies) Clarki, Cladoxylon mirahile Unger. The fauna and flora are 

 related to that associated with Goniatites intumescens in Europe. (J. M. Clarke.) 



Chemung beds of New York and Pennsylvania. — Dictyophyton tuberosum ; Orthis 

 Tioga, 0. impressa, Stropheodonta Cayuta, Productella lachrymosa, P. hirsuta, 

 Phynchonella contracta, Leiorhynchus sinuatum, L. mesacostale, Spirifer disjiinctus, 

 Amboc(dia umbonata var. gregaria, Atliyris Angelica ; Aviculopecten diqMcatus, Pterinea 

 Chemungensis, Ptychopteria Sao, P. falcata, Lep)todesma spinigerum, Goniophora Che- 

 mungensis, Schizodus Chemungensis, Grammysia subarcuata, G. communis, Sphenotus 

 contractus, Prorhynchus nasutum ; Tropidocaris bicarinata, Echinocaris socialis. For 

 descriptions of Chemung fossils see Pal. N. Y., vols, iv., v., vii., viii. (C. E. Beecher.) 



LameJlibranchs of the lliddle and Upper Devonian. — The total number of species of 

 Lamellibranchs described and figured by Hall in vol. v. of the Palceontology of New York 

 is 458 ; and of these 195 occur in the Hamilton beds, and 263 in the Chemung. The 

 principal genera to which they are referred, and the number of species in each, are as 

 follows — H. signifying Hamilton, and C, Chemung : — 



Actinopteria (H. 7, C. 10), Aviculopecten (H. 13, C. 16), Conocardium (H. 4, C. 2), 

 Cypricardinia (H. 2, C. 1), Edmondia (H. 0, C. 7), Glossites (H. 1, C. 7), Goniophora 

 (H. 7, C. 4), Grammysia (H. 15, C. 9), Leda (H. 4, C. 0), Leiopteria (H. 12, C. 3), Lep- 

 todesma (H. 2, C. 55), Lumdicardium (H. 7, C. 6), Microdon (H. 4, C. 2), 3Iodiomorpha 

 (H. 10, C. 7), Mytilarca (H. 2, C. 8), Nucula (H. 9, C. 5), Nuculites (H. 5, C. 0), Ortho- 

 nota (H. 4, C. 1), Palcmnatina (H. 0, C. 4), Palceoneilo (H. 10, C. 10), Panenka (H. 12, C. 3), 

 Paracyclas (H. 4, C. 5), Prorhynchxis (H. 0, C. 3), Pterinea (H. 1, C. 10), Ptychopteria 

 (H. 0, C. 22), Schizodus (H. 3, C. 8), Sphenotus (H. 5, C. 5). 



E. D. Cope has announced (1892), from the bed containing Fish remains, of Chemung 

 age, in Mansfield, Tioga County, Pa., besides HoloptycMus Americanus, the species Bothrio- 

 lepis nitida Leidy, Holonema rugosum Clayp., Ganorhynchus oblongum Cope, Holoptychius 

 gigayiteus Ag. ; in Leroy, Bradford County, Pa., the bed probably Chemung, H. rugosus, 

 H. horridus Cope, H. filosus Cope ; at a neighboring locality, Bothriolepis minor Newb., 

 Coccosteus macromus Cope, and fragments of Osteolepis or MegaUchthys. Phaneropleuron 

 curtum of Whiteaves (Fig. 969) has been made by Traquair into a new genus, named 

 Scaumenacia, on the basis of a slight difference, in the dorsal or dorso-caudal fin, 

 between it and the original Phaneropleuron of Huxley. Plates of the large pterichthyoid 

 fish, Holonema rugosum, have been found in the red sandstones of the Oneonta group, 

 near Oxford, N.Y. (See Proc. A. A. A. S., vol. 39, 1890, page 337. Also, Am. Geol., vol. 

 vi., page 226.) 



The minute teeth, long of doubtful ownership, called Conodonts, now regarded as the 

 teeth of Annelids, occur of several species in the Genesee shales of Erie County, N.Y., 

 at Xorth Evans, including the following described by Hinde {Q. J. G. Soc, 1877) : 

 Prioniodus angulatus, P. acicularis, P. armatus, P. spicatus, P. erraticus, Polygnathxis 

 dubius, P. nasutus, P. princeps, P. palmatus, P. punctatus. A plate is devoted to figures 

 of Conodonts (PI. 57), in Ohio Pal., ii., 1875. 



Additional Devonian plants. — The following are some of the species of St. John, 

 New Brunswick ; those that occur also at Gaspe are marked with an asterisk, and those 

 also in New York or farther West, with a dagger. 



