484 



MEDUS/E OF THE WORLD. 



collar around the bell; they are rectangular, somewhat wider than long, and hardly one-fourth 

 as long as bell-height. 24 radially situated, heart-shaped stomach-pouches have their wide 

 ends outward, somewhat wider than long, and contain the gonads. The tentacle-bases are 

 inserted into the clefts of the heart-shaped diverticula of the stomach. 



325 



Fig. 325. — Solmissus albescens. A, Side view of mature medusa. B, Bell-margin; v 3 velum; /, tentacle; s, stomach-pouches; 



m, mouth. C, Sensory-club. D, Tentacle. From life, bv the author. Naples Zoological Station, January 16, 190S. 

 Fig. 326. — Solmissus albescens. Radial section of the bell-margin through a sensory-club. Drawn by the author, from a 



medusa from Naples, Italv. Nuclei of ectodermal cells are shown as black dots, while those of entoderm are 



represented as circles, em, solid cord of entoderm cells at the bell-margin; ex, exumbrella; ot, sensory-club; su, 



subumbrella; t», velum. 



This medusa is found in the southwestern Atlantic, S. Iat. 32 , W. long. 26 . It is 

 described by Haeckel from preserved specimens and is possibly identical with S. incisa. 



Solmissus marshalli Agassiz and Mayer. 



Solmissus marshalli, Acassiz and Mayer, 1002, Mem. Museum Comp. Zool. at Harvard College, vol. 26, p. 151, plate 5, figs. 



23-25.— Bicelow, H. B., 1909, Ibid., 70I. 37, p. (14. plates 16 and 17. 

 Solmaris favescens, Vanhoffen, 1908, Narcomedusen der Valdivia Expedition, p. 58, taf. 2, fign. 9, 10; taf. 3, fign. 20-22. 

 Solmaris punctatus, Mater, 190ft, Bull. U. S. Bureau of Fisheries, p. 11-53. 



This species was inadequately described by Agassiz and Mayer, but has been rescued 

 from scientific oblivion through an excellent description by Bigelow. 



Bell 62 mm. wide, flat, half as high as wide, and exumbrella smooth. Gelatinous disk 

 thick and rigid, marginal lappet-zone very thin. Lappets rectangular, as broad as long, with 

 margins hardly, if at all, incised in the peronial radii. S to 16 long, stiff, tapering tentacles as 



