Medusae of the world . ered thicklywith nematocysts as in Halicreas. A few lithocyst-clubs on the bell-margin between thetentacles. Central stomach 15 mm. wide, mouth-opening round. 28 broad radial-canalsarise from stomach and 5 fork dichotomously so that ^ canals extend to the circular ves-sel. Gonads small, flat, and circular and close to the periphery of the stomach. Medusacolorless. Described by Bigelow from the Albatross collection of 1904-05. 3 specimensfound off the coast of Peru, between 300 fathoms and the surface. Genus BOTRYNEMA Browne, 1908. Botrwema, Browne, 1908, Trans. Royal Soc


Medusae of the world . ered thicklywith nematocysts as in Halicreas. A few lithocyst-clubs on the bell-margin between thetentacles. Central stomach 15 mm. wide, mouth-opening round. 28 broad radial-canalsarise from stomach and 5 fork dichotomously so that ^ canals extend to the circular ves-sel. Gonads small, flat, and circular and close to the periphery of the stomach. Medusacolorless. Described by Bigelow from the Albatross collection of 1904-05. 3 specimensfound off the coast of Peru, between 300 fathoms and the surface. Genus BOTRYNEMA Browne, 1908. Botrwema, Browne, 1908, Trans. Royal Soc. Edinburgh, vol. 46, p. 239. The type species is Botrynema brucei of the Antarctic Ocean. •30 r. TRACHYMEDUS^—BOTRYNEMA, CROSSOTA. GENERIC CHARACTERS. ..jstssss s=SM3-ft» assist lobes. Botrynema brucei Browne. ,.„„„,. .,.«„ B„,.„ ,rt ,. ?*? ?- «*?* >? * P •«• f« ?«=• ! !•• - * • .SaTfurrts lacktttacll EaPch of the^ lobes bears a linear row of about „ Fig 2i8A -Octant of bell-margin of brucei showing arrangement of 248A. Ucta ^ ^B^ ,n ^^^ Royal Soc Edmburgh. Per. perradial cleft. Inter, interradial cleft. sma„ tentacles of various sizes, tbe largest being ^££**^J*^Zthese there may be a few tentacles b«wee/hd;asf^8 mm. w,de, a trawl made between the surface and 2,485 fathoms, .3, W Genus CROSSOTA Vanhoffen, 1902. ^t^Z is C. 6rM««,« of the South Atlantic and Indian Oceans. GENERIC CHARACTERS. This senus bears so., ,_»-. ,o ^ZT^™™£«™ ters, but arise at about equal interval Halicrcas and Homceonema. ^ZttS^XZZZZZ -he s„-„„ea C,,„.« ?..»•w«m Vanhoffen, is apparently only a synonym. 396 MEDUSA OF THE WORLD. Crossota brunnea Vanhoffen. Crossota brunnea, Vanhoffen, 1902, Wissen. Ergeb. deutsch. Tiefsee Expedition, Valdivia, Bd. 3, Lfg. I, p. 73, taf. 9, ; taf- I2> 34-38, 43-47.—Bigelow, H. B., 1909, Mem. Mus. Comp. Zool. at Harvard Coll


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectcnidari, bookyear1910