INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 575 



Argulus :\rEGALOPS Smitli, sp. nov. (p. 452.) 



Carapax subelliptical, longer than broad; tbe anterolateral margin 

 with a deep sinns; the posterior lobes of tbe earapax, each side of the 

 shallow and narrow sinns, broady ronnded. Eyes very large, their 

 diameter a tenth as great as the breadth of the carapax. Body pro- 

 jecting ninch beyond tbe posterior margin of the carapax. Tail some- 

 what ovate, about two-thirds as broad as long, the sinus only a small 

 notch, extending not more than a tenth of the length. Natatory legs very 

 long, all projecting beyond the carapax. Squamiforni appendages upon 

 the bases of the prehensile legs, with a pappilose area upon the expanded 

 portion, and the posterior margin armed with three rather slender 

 teeth, separated by broad spaces; the terminal segment of the leg 

 armed with two small hooks. 



Color of alcoholic spe(;imens, yellowish w^hite. 



Length, U.2™'" ; length of carapax, 1.3; breadth of carapax, 1.0 ; length 

 of tail, 0.7; breadth of tail, 0.47. 



Vinej'ard Sound, taken at the surface, July 8. 



Arcutlus Alos.e Clould. (p. 459.) 



Invertebrate of Massachusetts, p. 340, 1841. 



Parasitic upon the alewife in Massachusetts Bay, according to Gould. 

 Caligus curtus Milller. (p. 459.) 



Eutomostraea, p. i:iO, PI. 21, tigs. 1, 2, 1785 ; Kroyer, Nat. Tidsskrift, vol. i, p. 619, 

 PI. 6, fig. 2, 1837. CaUgus MilUeri Leach, Encycl. Brit., Suppl., vol. i, p. 405, 

 PL 20, figs. 1-8, 181(5, (teste Baird et al. ;) Baird, British Eutomostraea, p. 271, 

 PI. 32, tigs. 4, 5. CaUgiis Amcilcanus Piclvcriug and Daua, Amer. Joiir. Sci., 

 vol. xsxiv, p. 225, PI. 3-5, 1838 ; Dana, U. S. Expl. Expd., Crust., PI. 93. 

 Abundant upon the cod-fish of our coast and of Europe. It is prob- 

 ably the Calujus pisci)ius of Gould and other American writers. 



Caligus rap ax Edwards, (p. 457.) 



Hist. nat. des Crust., tome iii, p. 453, PL 38, tig. 9-12,1840 ; Baird, op. cit.,p. 270, 

 pi. 32, tigs. 2, 3; Steeustrup aud Liitken, Bidrag til Kundskab om det aabiie 

 Havs Snyltekrebse og Leru;eer, p. 359, I'l. 2, fig. 4, 1861. 



Vineyard Sound, on the stingray, (Tny^o^i centroura,) and small speci- 

 mens, both male and female, taken at the surface at Wood's Hole, Sep- 

 tember 3, in the evening. These specimens from the surface, according 

 to Professor Yerrill's notes, were light flesh color, thickly speckled with 

 minute brown spots, the eyes bright red. 



Lepeophtheirus, species, (p. 459.) 



A species with a long tail, and somewhat like the L. gracilis, (Van 

 Benaden sp.,) was found upon the stingray {Tri/gon centroura) taken in 

 Vineyard Sound. 



Lepeophtheirus, species, (p. 459.) 



A species with a very short tail, and approaching Ileller's genus Anu- 

 retes. South shore of Long Island, upon a flounder, {Chanojfsetta ocel- 

 laris.) 



