NO. 1369. NATURAL HISTORY OF THE ISOPODA—RICHARDSOX. (361 



VALVIFERA or IDOTEOIDEA. 



Family IDOTEID.i:. 



CHIRIDOTEA ENTOMON (Linnaeus). 



07iixcus entomon Linx-eus, Syst. Nat., 12th ed., II, 17()t), \k KHiO. — P.^llah, Spicil. 

 Zool., IX, 1772, p. 64, pi. v, figs. 1-0. 



(?) Entomon pyrdmldali' Klein, Rem. sur les ("nistaci'H, figs. 1-3. 



Squilla entomun. Dk Geek, Mem. pour servir ;\ I'Hist. <les Insectcs, VTI, 177.S, p. 

 514, pi. XXXII, figs. 1-10. 



Asellus entomon Olivier, Encycl. Meth., 1789, p. 258. 



(?) Cymothoa entomon Fabricius, Ent. Syst., II, 1793, p. 505. 



Jdotea entomon Bosc, Hist. Nat. des Crust., II, 1802, p. 178. — L.\treille, Hist. 

 Nat. Crust, et Ins., VI, 1803-4, p. 361; VII, pi. lviii, figs. 2, 3.— (?) L.\- 

 MARCK, Hist, des Anim. sans Vert., 1st ed., V, 1818, p. 159. — (?) Desmarest, 

 Consid. Crust., 1825, p. 289. — Ratuke, Nueste Schriften der naturf. Gesellsch. 

 in Danzig, I, 1820, p. 109, pi. iv.— Kr0yer, Vid. Selsk. Skrift., VII, 1838, 

 p. 323.— Milne Edwards, Hist. Nat. Crust., Ill, 1840, p. 128.— Kr0yer, 

 Nat. Tidsskr., II, 1847, p. 402.— White, List Cr. Brit. Mus., 1847, p. 93.— 

 Brandt, Cr. in Middendorff' s Sibirisciie Reise, II, Pt. 1, 1851, p. 145.— 

 Meinert, Nat. Tidsskr., 3d ser., XI, 1877, p. 84. — Brandt, Comptes Ren- 

 dus, 1880, p. 713; Ann. Mag. Nat. Hist., VI, 1880, p. 98. 



(?) Saduria entomon Adams, in White, Sunderland's Voyage Baffin's Bay, etc., 

 Appendix, 1852, p. ecvii. 



Idotsega longicauda Lockington, Proc. Cal. Acad. 8ci., VII, 1877, Pt 1, p. 45. 



Glyptonotus entomon Mieks, Trans. Linn. Soc. London, XVI, 1883, pp. 12, 13, pi. 

 I, figs; 1, 2 (see Miers for above synonymy). — Richardson, Proc. V. S. Nat. 

 Museum, XXI, 1899, \^. 843. 



Localities.— St. Michael. Alaska (Dr. Rittei-): Yakiitat Bay. Alaska. 

 (Harriuian Alaska PLxpodition.) 



IDOTEA RESECATA Stimpson. 



Jdotm mswato Stimpson, Bost. Journ. Nat. Hist., VI, 1857, pp. 504-505, pi. xxii, 

 fig. 7; Proc. Bost. Soc. Nat. Hist., VI, 1859, p. 88.— Miers, Journ. Linn. 

 Soc. London, XVI, 1883, pp. 45-46. — Richardson, Proc. U.S. Nat. Museum, 

 XXI, 1899, p. 844. 



Locality. — Tomales Bay, Califoi-jiia. (Dr. Kittor aiul party.) 



IDOTEA GRACILLIMA (Dana). 



Stenosoma gracillimum Dana, Proc. Acad. Nat. Sci. Philad., 1854-55, VII, p. 175. — 

 Stimpson, Bost. Journ. Nat. Hist., VI, 1857, p. 505. 



Idotea gracillima Miers, Journ. Linn. Soc. London, XVI, 1883, p. 35.— Richard- 

 son, Proc. U. S. Nat. Museum, XXI, 1899, p. 844. 



Locality. — California (Dana). 



The description of this species given hy I'lofessor Dana is very 

 short and rather vao-ue. Tie descril)es the body as extnMuely narrow 

 and tiliforni, the thoracic segments suluiuadrate. head (juadrate. He 

 refers to the linear post-abdomen, which is truncated at the apex, is 

 three-jointed, and marked on either side with a suture. The antenna^ 



