112 CALIFORNIA ACADEMY OF SCIENCES. 



Ariitozoe rtgina and its abdominal appendages. 3.3, Echinocarh and its 

 allies: J?, (irmata (punctata) Hall, E. fnihbtvh AVhitf., E. pustulosa Whitf., 

 E. rmttinodosa Whitf., E. .•^ocialis Beecher. Elymocarh siUqun Beecher. 

 Tropidocaris bicarinata Beecher, 7'. interriipta Beecher, T. alternaia 

 Beecher. Echinocaris wrirjhtiana Dawson. Colpocaris sinuataM. & W. 



and HoU (H. B.) Notes on the Palaeozoic 



bivalved Entomostraca. No. 20. On the genus Beyrichia 

 and some new species. 



In Annals Mag. Nat. Hist., 5th series, London, vol. 17, 1886, p. 3.37, 

 pi. 12. 



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

 Renter, B. klodeni M'Coy, also var. yranulata Jones, var. intemedia Jones, 

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

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

 Boll., B. admixta n. si3., B. lacumata n. sp. BoUia bicollina n. sp., B. 

 nniflexa n. sp. Kloidenia intermedia J. & K. var. martjinata n. sji. 



Notes on the Paheozoic bivalved Entomostraca. 



No. 21. On some Silurian genera and species. 



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

 1.3, 14. 



Stre.pula u. g. Placentula n. g. Strepula concenlrica n. sp., .S'. irregv- 

 laris n. sp., (S'. beyrichioides n. sp. Bollia vinei n. sp., also var. miiis. Pla- 

 centula excavata J. & H. Primitia lenticularis J. & H., P. roemeriana J. 

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

 P . humiUfs n. sp., P . valida n. sp., also var. Itrcviata and augustata, I*. 

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

 H., P. cor7iuta n. sp., P. cequalin n. sp., P. diveraa n. sp. P. seminulum 

 Jones, P.fnrcata. 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. 

 Btjthocypris sublunata J. & K. MacrocyjirixjonefiianaKivVihy. Cythcrdla 

 extuberataJ. & K., C. aitennata J. & K. 



