RIBTjTOGRAPIIY of PAIi/EOZOIC ORTTSTAOEA 



85 



REED (F. R. Cowper) — Continued 



Fossils from the Grey sliales marked on the map as Trih)bitc 



shales. 



Quart. Jour. CjCoI. Soc. London, vol. 53, 1897, p. 538. 

 Triniiclfus si'ticornls His. var. portroinensis n. var. 



Notes (Jii the Geoloyv of tlie Coimtv Waterfoi'd. 



The fauna of the Oidoviciaii beds near Tramore. 



Geo!. Mag. London, Decade iv, voh 4, 1897, pp. 50.?-512. List of fossils. 



Notes on the affinities of the j^enera of ("heirurus. 



Geol. Mag. London, Decade iv, \o\. 5, 1898, pp. 206-214. 



Blind Trilobites. 



Geol. Mag. London, Dec. iv, vol. 5, 1898, jip. 439-447, and 493-506. 

 The uuthor divides the Blind Trilobites into two divisions as follows: 



Ciroup 2 — Adaptive forms. 



Ihirpes benignensh Barr., I!ta<:e Dd. 1. 



Illaenus Angelini Holm. 



— aratns Barr., Etage Dtl. 1. 



— caecus Holm., Keisley Limestone. 



— galeatus Reed, Keisley Limestone. 



— Katzni Barr., Etage Dd. 1. 



— leptopleiira Liimars., Triniicleus Beds. 



— Zeidleri Barr., Etage Dd. 5. 



Proetus dormitaris Ricliter, Tentaculites 



Beds. 

 Proetus expansus, Tentaculites Beds. 

 Acidaspis myops Richter, Tentaculites 



Beds. 

 Phacops (Trinteroccpliahis) laevis, 



Miinst. I'pper Devonian. 



Group 1 — Primitive forms. 



Agnostus Cambrian — Ordo\'ician. 



Microdiscus Cambrian. 



Trinucleus Ordovician. 



Ampyx Ordovician-Silurian. 



Dionide Ordovician. 

 ISalterhi ( ) rdov ici an . 



Endymionia Ordovician. 



Tiresias Ordovician. 



Conocoryphe s. str. Cambrian. 



Ctenocephalus Cambrian. 



Eriimys Cambrian. 



Carausia Cambrian. 



Dictyocephalites Cambrian. 



Eryx Cambrian. 



Aneucanthus Cambrian. 



Aiiopocare Cambrian. 

 }A-z'alo7iia Cambrian. 

 IHathytiotus Cambrian. 



Carmon Ordovician. 



Holocephalina Cambrian. 



ITelepJtus Ordovician. 



Dindymene Ordovician. 



Areia Ordovician. 



Placoparia t)rdovician. 



Prosopicus. 



Isocolus Ordovician. 



Typliloniscus, Lower Devonian. 



ICyphonisciis Ordovician. 



Conophrys probably — Ordovician. 



Shumardia larval forms — Ordovician. 



The genera Dindymene Typhloniscus ami Carmon the author places with some hesi- 

 tation in Group 1, which may be regarded as reversionary or degenerate t\pes on ac- 

 coimt of tlieir primitive adult cephalic features, combined with morphological char- 

 acters. 



The genera Salteria, Avalonia, Baihynotus, I'elephus and C\phoniscus may be ulti- 

 mately found to possess eyes. 



