110 SAN DIEGC SOCIETY OF NATURAL HISTORY 
ULRICH (E. 0.) and BASSLER (Ray S.)—Continued 
Cythere 2? Haworthi n. sp. Bairdia Beedei n. sp. and var. adrupta. 
Cypridina subovata n. sp. 
The genus Paraparchites is closely related to and probably derived from Aparchites. 
In the latter the ventral edges of the valves meet without appreciable or, at any rate, 
constant overlap, and it is this difference that is chiefly relied on to distinguish the 
two genera. 
The authors refer the Ordovician species 1 parchites elliptia Ulrich, to this genus. 
and Bassler (Ray 8.) New American Paleozoic Ostracoda. 
Preliminary revision of the Beyriehiidw with descriptions of new genera. 
Proc. U. S. National Museum, vol. xxxv, 1909, pp. 277-340, plates 37-44. 
New genera: Scofieldia, Treposella, Hollina, Kirbyina, Jonesina. 
New subgenus: Steuslofha. 
New species: Beyrichia moodeyi, B. waldronensis, Kloedenia centricornis, K. fim- 
briata, K. marginalis, K. praenunfia, K. punctillosa, K. retifera. 
New name Beyrichia granulifera. 
The authors divide the family into 21 genera, as follows: 
Beyrichia McCoy emended. 
Ordovician species: Beyrichia (Steusloffia) acuta, (B. erratica var. acuta Krause), 
B. (Steusloffia) antiqua, (B. antiqua Steusloff), B. granulifera new name (Bollia 
granulosa Krause), B. (Steusloffia) Linnarssoni (Strepula Linnarssoni Krause), B. 
(Steusloffia) signata (B. signata Krause). Beyrichia tumida (Ctenobolbina tumida Ul- 
rich), B. v-scripta (Bollia v-scripta Krause). 
Silurian species: Beyrichia admixta Jones and Holl., B. aequilatera Hall, B. Baueri 
Reuter, B. Baueri tripartita Reuter, B. (Steusloffia) beyrichiodides (Strepula beyrichiodi- 
des J. & H.), B. bolliana Reuter, B. Bronni Reuter, B. Buchiana Jones, B. Buchiana 
angustata Reuter, B. Buchiana incisa Reuter, B. Buchiana lata Reuter, B. Buchiana 
nutans Kiesow, B. clavata Kolmodin, B. Damesi Krause, B. diffusa Jones, B. dubia 
Reuter, B. grandis Kolm., B. granulosa Hall, B. interrupta (Bollia interrupta Jones), B. 
Jonesii Boll, B. Kloedeni McCoy, B. Kloedeni acadica J., B. Kloedeni antiquata J., 
B. Kloedeni bicuspis Kiesow., B. Kloedeni granulata J., B. Kloedeni infecta J., B. 
Kloedeni intermedia Jones, B. Kloedeni intermedia sub. var. subspissa Jones and at 
B. Kloedeni nuda Jones, B. Kloedeni protiberans Boll., B. Kloedeni subtorosa J., B. 
Kloedeni torosa Jones, B. Kloedeni verruculosa Jones, B. Kochii Boll, B. lata Hall, B. 
lauensis Kiesow. B. Lindsromi Kiesow, B. MacCoyiana Jones, B. MacCoyiana sulcata 
Reuter, B. Moodeyi n. sp., B. muldensis Chapman, B. nodulosa Boll, B. nodulosa ex- 
pansa (B. Lindstromi var. expansa Kiesow), B. Noetlingi Reuter, B. Noetlingi con- 
juncta Reuter, B. plagosa Jones, B. plicata (Entomis plicata Krause), B. pustulosa 
Hall, B. reticulata (Strepula reticulata (\imbata in text) Krause), B. Reuteri Krause, 
B. salteriana Jones, B, scanensis Kolmodin, B. (Steusloffia) simplex (Strepula simplex 
Krause), B. spinulosa Boll, B. Steusloffi Krause, B. trilobata (Entomis trilobata Krause), 
B. tuberculata (Battus tuberculatus Kloeden), B. tuberculata bigibbosa Reuter, B. tuber- 
culata foliosa Jones, B. tuberculata spicata Jones, B. tuberculata Kockiana Reuter, B. 
umbonata (B. bolliana umbonata Reuter), B. waldronensis n. sp. 
Devonian species: Beyrichia aurita Richter, B. devonica J. & W., B. new species 
(B. Kloedeni var. Jones). 
Of the 225 named species and varieties, varying in time from the Cambrian to the 
Permian, and referred to the genus Beyrichia, only 73 species and varieties listed 
above are referred to the genus. 
The authors places under Group Beyrichia Kloedeni: 
Beyrichia Kloedeni, B. MacCoyiana, B. Bollinana, B. Kockii, B. tuberculata-Kock- 
tana, B. Moodeyi and B. Lindstromi. 
