Medusae of the world . anals tacle-bulbs black pigment. greenish. green. Where found. Maldive Islands, Fiji Islands, Canary Islands, Mediterranean; Bahamas; and Coast of Indian Ocean. Pacific. Atlantic. Atlantic coastsof ? Tortugas,Florida. Australia. Remarks. Closely allied to var. Closely allied to Bell thick walled. Peduncle very occellata fromthe MalayArchipelagohas black-pig-mented ten-tacle-bulbs. Tentacles veryshort. Pedun-cle slender. wide at base,thick, pris-matic. LEPTOMEDUS/E EUTIMA. 297 canals and a narrow circular vessel. The peduncle i
Medusae of the world . anals tacle-bulbs black pigment. greenish. green. Where found. Maldive Islands, Fiji Islands, Canary Islands, Mediterranean; Bahamas; and Coast of Indian Ocean. Pacific. Atlantic. Atlantic coastsof ? Tortugas,Florida. Australia. Remarks. Closely allied to var. Closely allied to Bell thick walled. Peduncle very occellata fromthe MalayArchipelagohas black-pig-mented ten-tacle-bulbs. Tentacles veryshort. Pedun-cle slender. wide at base,thick, pris-matic. LEPTOMEDUS/E EUTIMA. 297 canals and a narrow circular vessel. The peduncle is about 3 times as long as height of bell,long, conical, and tapering gradually throughout its length from inner apex of bell-cavity tostomach. Stomach small and flask-shaped, its proximal part, near point of union withpeduncle, thrown into complex folds. There are 4 simple, slightly recurved lips. The gonadsare situated upon the radial tubes, in two separate regions, one upon the peduncle, and oneupon the Fig. 160.—Eutima mira, after Brooks, in Mem. Boston Soc. Nat. Hist., 1886. Small figures are of natural size and illustrate attitudes of the medusa. The stomach, gonads, and tentacles, opaque blue-white in color. Many specimens displaygreen entodermal pigment in the stomach and in the basal bulbs of the 4 long tentacles. The medusa is common at the Tortugas, Florida; Charleston, South Carolina; andBeaufort, North Carolina. It is an occasional visitant to Newport, Rhode Island, and toWoods Hole, Massachusetts, late in summer, being abundant in some years and rare inothers. I am in accord with Hargitt in believing that E. mira is identical with E. limpida. The development of Eutima mira has been studied by Brooks, 1884 and 1886, whoreared the hydroid from the egg. The gastrula is formed by delamination of the entodermfrom the inner ends of the ectoderm cells. This takes place most rapidly at the narrow end 298 MEDUSA OF THE WORLD. of the pear-shaped planula. Thi
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectcnidari, bookyear1910
