Medusae of the world . 1. No sensory tractsover exumbrella. Color. Stomach-pouches andbasal parts of tentacleswhitish, other partscolorless. > p ? Where found. Mediterranean, common. Coast of Asia Minor,Mediterranean. Southwestern °, 32° Atlantic coast of SouthAfrica. Remarks. Is this a young stageof S. albescens? Described from a singlespecimen by Haeckel. *For Solmissus marshalli and 5. incisa see text. Solmissus albescens Haeckel. Cunina albescens, Gegenbaur, 1856, Zeit. fiir wissen. Zool., Bd. 8, p. 260, taf. 10, fign. 3, 4. Cunina monela, Leuckart, 1856, Archiv.
Medusae of the world . 1. No sensory tractsover exumbrella. Color. Stomach-pouches andbasal parts of tentacleswhitish, other partscolorless. > p ? Where found. Mediterranean, common. Coast of Asia Minor,Mediterranean. Southwestern °, 32° Atlantic coast of SouthAfrica. Remarks. Is this a young stageof S. albescens? Described from a singlespecimen by Haeckel. *For Solmissus marshalli and 5. incisa see text. Solmissus albescens Haeckel. Cunina albescens, Gegenbaur, 1856, Zeit. fiir wissen. Zool., Bd. 8, p. 260, taf. 10, fign. 3, 4. Cunina monela, Leuckart, 1856, Archiv. fiir Naturgesch., Jahrg. 22, p. 36, taf. I, fig. 13; taf. 2, fig. 12. Cunina solmaris, Hertwig, O. and R., 1879, Nervensyst. Sinnesorganc der Medusen, pp. 19, 34, taf. 1, fign. 7-10; taf. 10, fig. 6. Solmissus albescens, Haeckei,, 1879, Syst. der Medusen, p. 350. Pohxenia albescens, Metschnikoff, E., 1886, Embryol. Studien an Medusen. Wien, pp. 23 (egg), 65 (formation of germ layers). —SOLMISSUS. 483. Fig. 324.—Solmissus albescens, after Gegenbaur,in Zeit. fur wissen. Zool., Bd. 8. Bell flat, lenticular, 25 to 30 mm. in diameter. The central part of the bell is a doublyconvex lens, quite thick at the center, whereas the bell-collar is thin, flexible, and exumbrella over the collar region is thickly besprinkled with pnckle-like tubercles andwith flat, discoidal nematocyst-warts. There are about 14 to 16 marginal lappets and an equal number of tentacles which alter-nate with these lappets. When expanded, each lappet is nearly rectangular, but with rounded angles on its outer margin; and it is times as long as it is wide. They can,however, contract so as to become some-what wider than they are long. There are5 to 8 sensory-clubs on the margin of eachlappet. There are neither otoporpae norexumbrella sensory tracts above thesensory-clubs. Each sensory-club is shortand widens outwardly, with a cup-shapedentodermal cavity in its outer end wi
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectcnidari, bookyear1910
