262 Miss H. Richardson on the Isopods of the 



the fifth, sixth, and seventh segments 

 large and broad. Palp of maxillipeds 

 two-jointed 21. Cleantis. 



c'. Body smooth, ovate. Epimera of second, 

 third, fourth, and iifth thoracic segments 

 coalesced with segments ; those of sixth 

 and seventh segments distinct and 

 visible. Palp of maxillipeds three- 

 jointed. Joints of fiagellura all con- [uov. 

 solidated and forming a single piece . . 22. Eiisymmerus, gen. 



17. Glyptonotus, Eights. 



Analytical Key to the Species o/Glyptonotus *. 



a. Joints of the peduncle of antennae not di- 

 lated ; flagellum eight- to fourteen- 

 jointed. Antero -lateral cervical lobes 

 prominent 35. G. entomo)i (Linnaeus). 



a'. Joints and peduncle of antennae greatly 

 dilated ; flagellum seven- to eight- 

 jointed. Antero-lateral cervical lobes 

 not prominent 36. G. Sabini (Kroyer). 



35. Olyptonotus entomon (Linnaeus). 



Oniscus entomon, Linnseus, Syst. Nat. 12th ed. ii. 1766, p. 1060 ; Pallas, 



Spicil. Zool. ix. 1772, p. 04, pi. v. figs. 1-6. 

 (?) E^itomon pyramidale, Klein, Rem. sur les Crustac^s, figs. 1-3. 

 Squilla entomon, De Geer, M^m. pour servir a I'Hist. des Insectes, vii. 



1778, p. 514, pi. xxxii. figs. 1-10. 

 Aselhis entomon, Olivier, Encycl. M6th. 1789, p. 253. 

 (?) Cymothoa ento^non, Fabricius, Ent. Syst. ii. 1793, p. 505. 

 Idotea entomon, Bosc, Hist. Nat. des Crust, ii. 1802, p. 178 ; Latreille, 



Hist. Nat. Crust, et Ins. vi. 1803-4, p. 361, vii. pi. Iviii. figs. 2, 3; 



(?) Lamarck, Hist, des Anim. sans. Vert. 1st ed. v. 1818, p. 159; 



(?) Desmarest, Consid. Crust. 1825, p. 289 ; Rathke, Neuste Schriften 



der naturf. Gesellsch. in Danzig, i. 1820, p. 109, pi. iv. ; Kroyer, Vid. 



Selsk. Skrift. vii. 1838, p. 323 ; Milue-Edwards, Hist. Nat. Crust, iii. 



1840, p. 128 ; Kroyer, Nat. Tidsskr. ii. 1847, p. 402; White, ListCr. 



Brit. Mus. 1847, p. 93 ; Brandt, Cr. in Middendorff's Sibirische 



Reise, ii. 1851, p. 145 ; Meinert, Nat. Tidsskr. 3rd ser. xi. 1877, 



p. 84 ; Brandt, Comptes Rendus, 1880, p. 713 ; Ann. & Mag. Nat. 



Hist. vi. 1880, p. 98. 

 (?) Saduria entomon, Adams, in White, Sutherland's Voy. Baffin's Bay 



&c.. Appendix, 1852, p. ccvii. 

 Jdotcega longicauda, Lockington, Proc. Cal. Acad. Sci. vii. 1877, pt. i. 



p. 45. 

 Glyptonotus entomon, Miers, Trans. Linn. See. London, xvi. 1883, 



pp. 12, 13, pi. i. figs. 1, 2. (See Miers for further synonymy.) 



Hah. Circumpolar j west coast of North America to Pacific 

 Grove, California. 



* This key is taken from Miers, Journ. Linn. Soc. London, Zool. xvi. 

 (1883), p. 11. 



