ISOPODS OF NORTH AMERICA. 



358 



poseil of four 8e*>'nu'iit,s with Jatcnil .sutures ut tlic Itasc of the fourth, 

 or terminal segment, indicating another partly coaleseed segment. 

 First three pairs of legs preluMisile, Avith propodus dilated and dae- 

 t}dus retlexed. Last four pairs of legs amhidatoi'v. 



Inner branch of uropoda half as long as imier branch. 



Species small. 



ANALYTICAL KEY TO TIIK SI'ECTKS OF THE GENUS CmKinOTEA. 



(t. First pair of antennre extend l)ey()n(l the peduncle of the second antenn;r. Sec- 

 ond antenna' sliort, extending only to the anterior margin of tlie first thoracic 

 segment. Front of head not excavate between the antero-lateral lobes, but 



slightly excavate in the middle of the anterior margin CItirldotea (-it'ca (Saj^) 



b. First pair of antennae extend to the nuddle of the fifth article of the peduncle 

 of the second antennpc. Second antennje long, extending to the posterior 

 margin of the sixth thoracic segment. Front of head deeply excavate between 

 the antero-lateral angles Chiridotea tuftdi (Stimpson) 



CHIRIDOTEA CiECA (Say). 



Idotea cpcca Say, Jour. Acad. Nat. Sci. Phila., J, Ushs, p. 424. — Milne Edwards, 

 Hist. Nat. des Crust, III, 1S40, p. 131. — Guerin, Iconog., Crust., 1843, p. 35. — 

 Harger with Verkill, Report IL S. Com- 

 missioner of Fish and Fisheries, Pt. 1, 

 1873, p. 5ti9 (275), pi. v, fig. 22. 

 Chiridotea e;rca Harger, Am. Jour. Sci., XV, 

 1S7S, p. 374; Proc. U. S. Nat. Mua., II, 

 1879, J). 159; Report U. S. Commissioner 

 of Fish and Fisheries, Pt. (5, 1880, pp. 

 338-340, pi. IV, figs. 16-19. 

 Glijptonotus circus Miers, Jour. Linn. Soc. 

 London, XVI, 1883, pp. 17-18. 



Chiriduteu avca Richard- 

 son, American Natu- 

 ralist, XXXIV, 1900, 

 p. 226; Proc. V. S. 

 Nat. Mus., XXIII, 

 1901, jt. 539. 



Localities. — Florida; 

 New Haven, Connecti- 

 cut; Woods Hole, Massachusetts; Tarpaulin Cove, 

 Naushon; 8. W. end of Campobello, New Brunswick; 

 Cohasset, Massacjiusetts; Long Island Sound; Vine- 

 yard Sound; Nantucket, Provincetown, Nahant, Mas- 

 sachusetts; Halifax. Nova Scotia; New England coast. 

 Depth. ^-'v>\xxi^Q,<^\ low wat(M-; shore: swimming in 

 fish weir; sand. 

 Body ovate, broad and short, tapering to a pointed extremity; twice 

 as long as broad, -t nun. : S mm. Length of abdomen, one-half the 

 length of entire body, \ nun. : S nun. 

 28589—05 23 



Fig. 380.- 



Chiridotea c.eca (After 

 IIarger). 



Ki. 381. — Chiridotea 

 c.eca. Maxili.iped. 

 X 51|. 



