114 CALIFORNIA ACADEMY OF SCIENCES. 



Beyrichiopsis Jimbricata J. & K. Phreatura concinna J. & K. Youngia 

 retidosalis J. & K. 



This valuable paper contains a classification of the Carboniferous strata 

 of England and Scotland, with tabulated lists of the distribution of the 

 Ostracoda. 



- Fourth report of the committee, consisting of 

 Mr. R. Etheridge, Dr. H. Woodward, and Prof. T. Rupert 

 Jones (Secretary), on the fossil Phyllopoda of the Palaeo- 

 zoic Rocks, 1886. 



In Kep. 56th Meeting Brit. Assoc. Adv. Sci., 1886, p. 229. 



1, Ceratiocaris leptodactylus McCoy. 2, C. murchisoni Agas. 3, C. gigas 

 Salt. 4, C. valida n. sp. 5, C. attenuata n. sp. (C. ? tyrannus Salt.) 6, C. 

 canaliculata n. sp. 7, C. halliana 11. sp. 8, C. par doe ana La Tonche. 9, 

 C. ludensis H. W. 10, C. robusta Salt., C. lata, angusta and minuta n. sp. 

 11, C. papilio and C. stygia Salt. 12, C. laxa n. sp. 13, C. salteriana J. & 

 W. 14, C. cassia Salt., C. cassioidesu. sp. 15, C. compta 11. sp. 16, C. 

 inornata McCoy. 17, C. ruthveniana 11. sp. 18, C. oretonensis and C. trun- 

 cata H. W. 19, C. wlenoides McCoy and C. gobiiformis J. & W. 20, Em- 

 melezoe elliptica McCoy, E. tenuistriata 11. sp., E. maccoyiana n. sp. 21, 

 Xiphocaris ensis Salt. 22, Physocaris vesica Salt. 23, C. sp. 24, C. longi- 

 cauda Sharpe. 25, Ptychocaris simplex and P. parvulu Ovak. 26, Crypto- 

 zoe problematica Packard. 27, Geological localities of Mr. S. M. Clarke's 

 fossil Phyllopods. 28, List of British Palaeozoic Phyllocarida described 

 in the Third and Fourth Keports. 



and Kirkby (James W.) A list of the genera 



and species of bivalved Entomostraca found in the Car- 

 boniferous formations of Great Britain and Ireland. 

 With notes on the genera and their distribution. 



In Proc. Geologist Assoc., vol. 9, 1887, p. 495. 



I. CypridinidsB: 1, Cypridina. 2, Cypridinella. 3, Cypridellina. 4, 

 Ci/pridella. 5, Kulcuna. 6, Cyprella. 7, Bradycinetus. 8, Philomedes. 

 9, Rhombina. 



II. Entomoconchidae: 1, Entomoconchus. 2, Of a. 



III. Polycopidas: 1, Polycope. 



IV. Entomididae : 1, Entomis. 



V. Cytherellidas : 1, Cytherella. 



VI. Leperditidas: 1, Leperditia. 2, Bernix. 2, Beyrichia. 4, Bey- 

 rirhiella. 5, Beyrichiopsis. 6, Kirkbya. 7, Moorea. 8, Phreatura. 



VII. Cyprididae: 1, Aglaia. 2, Candona. 3, Argillcecia. 4, Macro- 

 cypris. 5, Bythocypris. 6, Bairdia. 



VIII. Dawinulidas: 1, Dawinula. 



IX. Cytheridae: 1, Cythere. 2, Xestoleberis. 3, Bythocy 'there. 4, Car- 

 bonia. 5, Youngia. 



