N. A. INVERTEBRATE PALJLONTOLOGY. 727 



Hall, James. — Illustrations of the Microscopic Structure of Brachio- 

 poda. 35th Bep. New York State Mus. Nat. Hist., pi. xxii. 1884. 

 Albany. 



These illustrations are presented to show the principal varieties of 

 structure of the strophomenoid Brachiopoda. They represent a portion 

 of the work which is being done for the elucidation of shell structure 

 preparatory for the volume of Palieontology on the Revision of the Bra- 

 chiopoda. The specimens are prepared and photographed, and the ac- 

 comi^anying figures were drawn on stone from photograjihic prints. 



Hall, James. — Bryozoa (Fenestellidsej of the Hamilton Group. 36th 

 Rep. New York State Mus. N'at. Eist., pp. 57-72. 1884. Albany. 



The following new species are described : Fenestella multiplex, F. lat- 

 itruncata, F. fistulata, F.aspectus, F. angusfata, F. marcida, F. planira- 

 mosa, F. cinctuta, F. perimdulata, F. assita, F. wjiexa, F. perforata, F. 

 scalaris, F. exornata, F. quadrangala, F. emaciata, F. curvata, F. brevi- 

 linea, F. suhtortilis, and F. strata. 



Hall, James. — On the Structure of the Shell in the Genus Orthis. 36th 

 Rep. New York State Mus. Nat. Hist., pp. 73-75, pis. iii, iv. 1884. 

 bany. 



With his present knowledge the author makes three groups of Orthis, 

 according to their shell structure, the non-punctate, the distinctly i^unc- 

 tate, with distinct rows of puuctae coming out along the summit of the 

 radii, and the highly punctate. Excellent figures of shell sections are 

 given. 



Hall, James. — Description of a New Species of Stylonurus from the 

 Catskill Group. 36th Rep. New York State Mus. Nat. Hist, pp. 76, 

 77, pi. V. 1884. Albany. (Describes Stylonurus excelsior.) 



[Hall, James]. — Description of a New Genus from Greenfield, Saratoga 

 County, New York. 36th Rep. New York State Mus. Nat. Hist., pi. 

 vi. 1884. Albany. 



Describes the new genus Cnjptozoon,with. C.proli/erum as its type. 

 The generic and specific description are on the page of the explanation 

 of the plate. There is no name connected with it, but the author is pre- 

 sumably James Hall. 



Hall, James. — On the Mode of Growth and Relations of the Fenestel- 

 lidae. Rep. State Geologist for 1884, pp. 35-45, pis. i, ii; figs, a-i, p. 

 39; 1-2, p. 40; A-E, p. 41; A, p. 42; 1-10, pp. 43-45. 1885. Al- 

 bany. 



Continued from page 14 of the Report of the State Geologist for 1882. 

 Assembly document No. 178, 1883. 



The author proposes the following subgenera : Fenestropora, Ftylo- 

 porina, Ptyloporella, TJnitrypa, Isotrypa. Gives at length his reasons 



