MK. E. J. illEKS ON THE IDOTEID^. 9 



*5. E. montosa (Stimpson). E. coast of N. America. 

 5«. , var. hirsuta (Harger). Whitney River. 



6. E. tuberculata, Guerin-Meneville. Sts. of Magellan and Falklands, 



7. E. magellaiiica, Cunniughani. Sts. of Magellan. 

 *8. E. ? chilensis (Gay). Chile. 



Cleantis. 



*1. C. (Erichsonia) angulata (Dana). Rio de Janeiro. 



2. C. (E.) filiformis (Say). New Jersey, Massachusetts ; Gloria 



(Brazil ?). 



*3. C. ( E.) attenuata (Harger). New Jersey, Connecticut. 



4. C. (Cleantis) isopus, Grube {ined.). Cheefoo, Ojica, Goto Islaud. 



*5. C. [C.) linearis, Dana. N. Patagonia, Rio Negro. 



*6. C. (C.) granulosa, HeWer. St. Paul. 



The species marked with an asterisk are those of which I have 

 seen no specimens, and several of these are very probably in- 

 sufficiently characterized (for further information on this head 

 see under the several species). The following may be mentioned, 

 Ijowever, as very doubtfully distinct : — Idotea margaritacea, I.pus- 

 Uilata, I. stricta, Edotia montosa. Large though the number be 

 of supposed species now reduced to the rank of synonyma, it is 

 probable that future workers will add others to the list. 



Subfamily I. G-LTPTONOTIN^. 



Sides of the liectd emarginate or cleft, and laterally produced heyond 

 the eyes, iohich thus are situated U23on its dorsal surface. The 

 three anterior pairs of legs with tlie penultimate joint or propus di- 

 lated and forming , with the refleccihle dactylus,a prehensile hand. 



Species more or less ovate. 



This subfamily includes the single genus 



Gltptonottjs. 



Glyptonotus, Eights, " Trans. Albany Instit. ii. p. 331, pis. (1833-52) ;" 



id. Amer. Journ. of Sci. ^ Arts (ser. 2) xv. p. 135 (1853); id. Ann. 



8f Mag. Nat. Hist. xi. p. 339 (1853) ; id. Amer. Journ. of Sci. Sf- Arts, 



xxii. p. 391, pis. ii., iii. (1856). 

 Idotsega, Lockington, Pr. Cal. Acad. Sci. (pt. i.) vii. p. 44 (1877)- 

 Chiridotea, Harger, Amer. Journ. of Sci. Sf Arts, xv. p. 374 (1878) ; 



Marine Isopoda of New England in Rep. U.S. Comm. of Fish and 



Fisheries (pt. vi.), p. 337 (1880). 

 ? Saussureana, Haller, "Mitth. schweiz.ent. Ges. v. p. 573 (1879)." 



Body moderately convex and more or less ovate, broadest at 

 the third or fourth thoracic segments, with the sides thence con- 



