864 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxi. 



31. ALLONISCUS Dana. 



ANALYTICAL KEY TO THE SPECIES OF ALLONISCUS. 



a. Surface of body very densely granulated. Margins of epimera serrated. 



76. AUoniscus miraMlis Stnxberg. 

 a'. Surface of body punctate. 



i. Lateral processes of the head large, iiromineut. 



77. AUoniscus cornntus Budde-Luud. 

 i'. Lateral processes of the head small, scarcely prominent. 



78. AUoniscus perconvexus Daua. 



76. ALLONISCUS MIRABILIS (Stuxberg). 



Rhinoryctes miraMlis Stuxijerg, 0fver8igt af Votensk. Akad. Forhandl,, 1875, 



No. 2, p. 51. 

 AUoniscus mirabiUs Budoe-Lund, Crust. Isop. Terrestria, 1885, p. 229. 



Habitat. — Oalifoniia. 



77. ALLONISCUS CORNUTUS Budde-Lund. 

 AUoniscus cornutus Budde-Lund, Crust. Isop. Terrestria, 1885, pp. 228, 229. 

 Habitat. — California. 



78. ALLONISCUS PERCONVEXUS Dana. 



AUoniscus perconvexus Dana, Proc. Acad. Nat Sci. Phila., VII, p. 176. — Stimp- 

 SON, Journ. Bos. Soc. Nat. Hist., VI, p. 66. — Budde-Lund, Crust. Isop. Ter- 

 restria, 1885, p. 225. 



(f) AUoniscus maculosua Hakfokd, Proc. Cal. Acad. Sci., Pt. 1, VII, 1877, p. 54- 



FlG. 34. — ALLONISCUS PERCONVEXUS DANA. X 8. 



^«&ito/.— California; Pacific Grove : Santa Barbara; Monterey Bay, 

 collected by Mr. Heath; Tillamook Head, Oregon. 



32. LYPROBIUS Budde-Lund. 

 79. LYPROBIUS PUSILLUS Budde-Lund. 

 LyproMus pusiUus Budde-Lund, Crust. Isop. Terrestria, 1885, p. 230. 

 Habitat. — California. 



