112 CALIFORNIA ACADEMY OF SCIENCES. 



Arktozoe rtgina and its abdominal appendages. 33, Echinocaris and its 

 allies: j^. armata (punctata) Hall, E. subhevis Whitf., E. pustulosa Whitf., 

 E. muttnodosa Whitf., E. socialis Beecher. Elymocaria slliqua Beecher. 

 Tropidocaris bicarinata Beecher, T. interrupta Beecher, T. alternata 

 Beecher. Echinocaris wrightiana Dawson. Colpocaris sinuata M. & W. 



and Holl (H. B.) Notes on the Pakeozoic 



bivalved Entomostraca. No. 20. On the genus ^e^/ric^ia 

 and some new species. 



In Annals Mag. Nat. Hist., 5th series, London, vol. 17, 1886, p. 337, 

 pi. 12. 



Bollia n. g. KUedenia n. g. Beyrichia tuberculata Kloden var. yibbosa 

 Renter, B. kludeni M'Coy, also var. granulata Jones, var. inte media Jones, 

 and sub. var. subspisna nov., B. klodeni var. subtorosa and var. tuberculata, 

 also var. scotica B. concinna n. sp., B. maccoyiana Jones, B. joneaii 

 Boll., B. admixta n. sp., B. Idcumata u. sp. Bollia bicollina n. sp., B. 

 unijlexa n. sp. Kltedenia intermedia J. & K. var. marginata n. sp. 



Notes on the Palaeozoic bivalved Entomostraca. 



No. 21. On some Silurian genera and species. 



In Annals Mag. Nat. Hist., 5th series, London, vol. 17, 1886, p. 403, pis. 

 13, 14. 



Stre.pula n. g. Placentula n. g. Strepula concenirica n. sp., S. irregu- 

 laris n. sp., S. beyrichioides n. sp. Bollia vinei n. sp., also var. mitis. Pla- 

 centula excavata J. & H. Prim,itia leniicularis J. & H., P. roemeriana J. 

 & H., P.fabulina n. sp., P. variolata J. & H., P. paucipunctata J. & H.. 

 P. humilis n. sp., P. valida n. sp., also var. breviata and augustata, P. 

 tersa J. & H., P. umbilicata J. & H., P. cristata J. & H., P. ornata J. &. 

 H., P. cornuta n. sp., P. cequalis n. sp., P. diversa n. sp. P. seminulum 

 Jones, P. f areata n.sp. 



and Kirkby (J. W.) Notes on the distribu- 



tion of the Ostracoda of the Carboniferous formation 

 of the British Isles. 



In Abstracts Proc. Geol. Soc. London, session 1885-86, No. 486, p. 86. 

 Not descriptive. 



On Carboniferous Ostracoda from the Gavton 



borings, Northamptonshire. 



In Geol. Mag., n. s., decade 3, vol. 3, London, 1886, p. 248, pi. 7. 



Kirkbya variabilis n. sp., var. a, var. b and var. c, K. plicata J. & K. 

 Bythocypris sublunata J. & K. Macrocypris jonesiana Kir^hy . Cytherella 

 extuberata J. & K., C. attenuata J. & K. 



