BIBLIOGRAPHY OF PALEOZOIC CRUSTACEA. 19 



Belt (Thomas). On some new Trilobites from the 

 Upper Cambrian rocks of North Wales. 



In Cxeol. Mag., vol. 4, Loudon, 1867, p. 294, pi. 12. 



Agnostus insiformis Linne var. obesus, A. nodosus n. sp. Olenus gibbosus. 



On the Lingula flags or Festiniog group of the 



Dolgelly district. Part iii. 



In Geol. Mag., vol. 5, Loudon, 1868, p. 5, pi. 2. 



Conocoryphe ? ivilliamsonii n. sp. C. ? longisjmia n. sp. C. ? bucephcda 

 n. sp. Sphcerojjhthalmus bisulcatus Phil. Agnostus obtusus n, sp. A. tri- 

 secius Salt. A. barlowii n. sp. 



Bergeron (M. T.) Etude paleontologique et strati- 

 graphique des terrains anciens de la Montague Noire. 



lu Bull. Soc. Geol. France, 3rd series, vol. 15, 1887, No. 5. 

 Harpes. Phacoj^s. Cheirurus. 



Bergeron (Jules). Sur une formes nouvelle de Trilo- 

 bite de la famille des Calymenidse (genre Calymenella) . 



In Bull. Soc. Ceol. France, 3d series, vol. 18, 1890, p. 365, plate 5. 



Calymene declinata Barr. Homalonotus deljjhinoceijhalus Green. Caly- 

 menella boisseli n. sp. C. hayani Trom. & Lebesc. 



Diagnosis of Calymenella: Glabella slighly convex, rounded in front, 

 having three furrows, of which the last two are well marked. The poste- 

 rior furrow is inclined towards the rear, lobes slightly elevated, fixed 

 cheeks wide, limb well developed in front of the glabella sometimes end- 

 ing in a point. Pygidium the same as Calymene. 



This genus includes within its limits the American species Calymene 

 rosirata Vogdes, and C. nasuta Ulrich. 



Beushausen (Louis). Beitrage sur Kenntniss des ober- 

 harzer Spiriferensandsteins und seiner Fauna. 



Inaugural-Dissertation. Gottingen, 1884, p. 31. 



Liste der aus dem Oberharzer Spirifereusandstein beschriebenen Arten 

 ihrer Verbreitung im rheinischen Unterdevon. 



Beyrich (Ernst). Ueber einige bohmische Trilobiten. 

 Berlin, 1845, 1 pi. 



Cheirurus n. g. Sphcerexochus n. g. Trochurus n. g. 



Cheirurus insignis n. sp. C. claviger n. sp. C. sternbergii Boek. C. 

 gibbus n. sp. Sphcere.xochiis mirus n. sp. Lichias laciniata (Loven.) L. 

 scabra n. sp. L. boltoni Green. L. dissidens n. sp. Trochurus speciosus 

 n. sp. Bronieus umbellifer n. sp. B. imlifer n. sp. B. cam2)anifern.s]p. 

 B. laiicauda Wahl. Battus integer n. sp. B. nudus n. sp. 



