58 CALIFORNIA ACADEMY OF SCIENCES. 



Burmeister (H.) Ueber Gampsonychus Jimhriatiis 

 Jord. 



In A-bh. d. Natiirfosch. Gesellschaft zu Halle, 1854, vol. 2, pp. 191-200, 

 plate. 



The author changes Jordon's generic name of Gampsonyx to Gampsony- 

 chus. the former having been used by Swainson for a genus of Falconidce. 



Clarke (J. M.) On the structure of the carapace in 

 the Devonian Crustacean Rhinocaj'is and the relation of 

 the genus to Mesothyra and the Phyllocaridse. 



In American Naturalist, Sept., 1893, p. 793. 



The author places the genera Mesothyra and Rhinocarh under the Ehin- 

 ocaridfe, remarking " that the two fossils are very closely related, and it 

 will not do to separate them by more than a generic difiference." He illus- 

 trates the carapace structure in Rhinocaris, R. columbina, Mesothyra oceani, 

 Hymenocaris vermicaiida and Protocaris marshi. 



List of the original and illustrated specimens 



in the Palgeontological Collections, Part i, Crustacea. 



In 11th Annual Eeport of the N. Y. State Geologist for the Year 1891, 

 Albany, 1892. 



The author gives a systematic classification of the fossil Crustacea. 

 See also 45th Eeport N. Y. State Museum for 1891. 



On Cordania, a proposed new genus of Tril- 



obites. 



In nth Annual Keport N. York State Geologist for the Year 1891, p. 124. 

 The author proposes the new genus of Cordania with Phcethonkles 

 cyclnrus Hall as the type. 



Report of the Assistant Paleontologist. 



In 12th Annual Eeport of the N. Y. State Geologist lor the Year 1892, 

 Albany, 1893. 



The author describes a new species of Dalmanites Dolphi, p. 49, fig. 1. 



The Lower Silurian Trilobites of Minnesota. 



In vol. 3, part 2, of the Final Eeport of the Geol. and Nat. Hist. Sur. 

 Minnesota, Sept. 27, 1894. Piablished in advance of the Eeport. 



Calymene callicephala Gr. Isotelus gigas Dekay. /. maximiis Locke. /. 

 canalis Whitf. /. suson Whitf. Ptychopyge ulrichi u. sp. Gerasaphes n. 

 subgen. G. ulrichana n. sp. Nileus vigilans M. & W. Illcenus americanus 

 Billings. Illcenus cf. /. indeterminatus Wal. Thceleops ovata Con. Bti- 

 mastus trentonensis Emm. B. orhicaudatus Billings. Bathyurus extans 

 Hall. B. spiniger Hall. B. schucherti n. sp. Bronteus lunatus Billings. 



