172 CALIFORNIA ACADEMY OF SCIENCES. 



Types of Carboniferous Xiphosura new to 



North America. 



In Am. Naturalist, vol. 19, 1885, p. 291. 



Dipeltis n. g. Belinurus lacoei n. sp. Euroops longispina n. sp. Cyclus 

 americami>< n. sp. Dipeltis diplodiscus u. sp. 



The Syncarida, a group of Carboniferous 



Crustacea. 



In Am. Naturalist, vol. 19, 1885, p. 700. 

 Acanthotelson. 



On the Gamjwonychidce , an undescribed family 



of fossil Schizopod Crustacea. 



In Am. Naturalist, vol. 19, 1885, p. 790; Mem, Natl. Acad. Sci., vol. 3, 

 1886, p. 129, pi. 3. 



Palceocaris typus M. & W. Gampsonyx jimhriatus J. & von M. 



On the AnthracoridcB, a family of Carboniferous 



Macrurous Decapod Crustacea allied to the Eryonidon. 



In Am. Naturalist, vol. 19, 1885, p. 880; Mem. Natl. Acad. Sci.. vol. 3, 

 1886, p. 135, pi. 4. 

 Anthrapalivon gracilis M. i!^ W., ^. grossarti Salt. 



Discovery of the thoraic feet in a Carboniferous 



Phyllocaridan . 



In Am. Philos. Soc, vol. 23, 1886, p. 380, pi. 

 Cryptozofi n. g., C. prohlematicus n. sp. 



On the class Podostomata, a group embracing 



the Merostomata and Trilobites. 



In Am. Naturalist, vol. 20, 1886, p. 1060. 

 Merostomata: Xijjhosura, Synziphosura, Eurypteridce. 



On the Syncarida, a hitherto undescribed 



synthetic group of extinct Malacostracous Crustacea. 



In Mem. Natl. Acad. Sci., vol. 3, pt. 2, 1886, p. 123, pis. 1, 2. 

 Acanthotelson stimpsoni M. & W., A. magister Pack. 



On the Gampsonychidce , an undescribed family 



of fossil Schizopod Crustacea. 



In Mem. Natl. Acad. Sci., vol. 3, pt. 2, 1886, p. 129, 1 pi. 

 flampfionyx fimhriatus J. & von M. Palvnocaris typus M. & W. 



