HYDROMEDUSAE, SIPHONOPHORES, AND CTENOPHORES. 329 



Vanhoffen's Solmaris flavescens is apparently identical with Sol- 

 missus marshalli, as he himself points out (Vanhoffen 1912, p. 395). 

 But the name marshalli must be used because flavescens, as applied to 

 a Solmissits (not being the Solmaris flavescens of Kolliker), dates 

 only from 1908; marshalli from 1902. 



SOLMISSUS MARSHALLI Agassiz and Mayer. 



Solmissus marshalli Agassiz and Mayer, 1902, p. 151, pi. 5, figs. 23-25.— 

 Bigelow, 1909a, p. 64, pi. 16, figs. 5, 6, pi. 21, figs. 4, 6-8.— Mayer, 1910, 

 p. 484. 



Solmissus marshalli — material examined. 



All the specimens are so battered that I can add nothing to my 

 account of the much better preserved series from the eastern Pacific 

 (1909a), except a few notes on the numbers of tentacles and of 

 otocysts. Out of the total of 22 specimens, two have 11, two 12, five 

 have 14, six 15, and five have 16 tentacles and gastric pockets. In the 

 eastern Pacific series of 11 specimens, 8 was represented once, 11 

 once, 12 twice, 13 once, 14 once, and 16 five times. The number of 

 tentacles varies irrespective of size. Thus the two largest examples 

 of 52 and 53 mm. have 16 and 15 tentacles, respectively; the two 

 smallest, of 19 and 22 mm., 14 and 15. The specimens with the 

 fewest tentacles — that is, with 11 and 12 — are of medium size, 36, 

 34, 28, and 30 mm. in diameter. The smallest with 16 tentacles, 

 is only 30 mm. 



The largest number of otocysts in any one lappet in the eastern 

 Pacific series was 15. But in one of the Philippine collection, 48 mm. 

 in diameter, with 14 tentacles, there are 15 and 21 in two successive 

 lappets. In another of 45 mm., with 15 tentacles, there are 11 and 

 19 in two lappets. In one of 46 mm., 16 tentacles, 11 and 14 in two 

 lappets. The margins are all so damaged that I could not comit the 

 otocysts on more than two lappets in any one specimen. 



S. marshalli, or the variety marshalli of albescens, which ever its 

 final fate, is widely distributed over the tropical Pacific, as far north 

 as the Hawaiian Islands, and so far east as off the coast of Peru ; and 

 Vanhoffen's (1908, 1912) records from the tropical Atlantic and 

 Indian Oceans probably belong to it also. 



