238 GALEOLARIA AUSTRALIS. 



Galeolaria australis Qdoy and Gaimard. 

 Plate 5, figs. 8, 9, Plate 6, figs. 1, 2, 3. 



Gulculurki ausiralin Qdoy and Gaimard, '34, p. 42, pi. 5, fig. 29-31; ' Bl.unville, '34, p. 139, pi. (i, 



fig. 6; Lesson, '43, p. 140; Habckel, '88b, p. 151. 

 Galeolaria filiformis Huxi.Er, '59, p. 38, pi. 3, fig. 5 (non Leuck.^rt, '54). 



Galeolaria chuni Lens and Van Riemsdijk, :08, p. 61, pi. 9, fig. 78, 79, pi. 5, fig. 8-10, pi. 6, fig. 1-3. 

 ? Diphyes biloba Sars, '46, p. 45, taf. 7, fig. 16-21 , Schneider, '98, p. 86. 

 ? Diphyes siebohtii Gegenhai'R, '53, p. 340 (non Kolliker, '53). 

 ? Diphyes turgida Gegenbaur, '53, p. 344; '.54, p. 442, taf. 23. 

 ? Diphyes sarsii Gegenbaur, '60, p. 372, taf. 29, fig. 30, 31. 

 ? Epibulia hirgida Haeckel, '88a, p. 35. 



? Galeolaria turgida Haeckel, '88b, p. 151, 362; Lens and Van Riemsdijk, :08, p. 57. 

 ? Galeolaria biloba H.4ECKEL, '88b, p. 151; Chin, '97b, p. 17; Vanhoffen, :06, p. 16; Ro.mkr, :02, 



p. 173. 



This species was taken at Stations 4592, 4600, 4605, 4607, 4611, 4635, 

 4657, 4659, 4661, 4663, 4671, 4680, 4684, 4686, 4696, 4698, 4700, 4702, 4704, 

 4707, 4708, 4720, 4723, 4725, 4729, 2731, 4733, 4741, 4743, both on the surface 

 and in hauls from 300 fathoms to the surface. The material consists of two 

 entire colonies, 55 loose anterior, and 42 loose posterior nectophores. The 

 former are from 5-17 mm., the latter from 5-23 mm. in length. 



For my reasons for considering biloba Sars as a doubtful synonym of 

 australis, see p. 234. 



Haeckel ('88b, p. 151) lias ah-eady suggested that Huxley's G. filiformis 

 from the Indian ocean is australis while Lens and Van Riemsdijk ( : 08) have 

 identified it i)rovisionally with their biloba. Huxley's figure, with a single 

 large ventral wing, and the total absence of dorsal or lateral teeth, show that 

 both were correct. 



Lens and Van Riemsdijk have pointed out that the somatocyst in G. 

 uuslralis varies in length, relatively to the size of the nectophore as a whole, 

 and that the gelatinous substance varies in thickness. These observations are 

 borne out by our material. 



The nectophores have been well described by these authors, by Sars, and by 

 (legenbaur. The presence of a pair of ventral wings in the anterior, and of a 

 single ventral wing in the posterior nectophore, in connection with the absence 

 of either dorsal or lateral teeth in either, separates G. australis from all the other 

 members of the genus. I may add that the lateral canals in the posterior necto- 

 phore are looped, as in G. quadrivalvis, instead of being nearly straight as they are 

 described by Sars ('46) for G. truncata. In the anterior nectophore the lateral 

 canals arise, as usual, from the ring canal, not from the ventral one, as they do 

 in G. monoica (p. 240). 



' By a typographical error the reference in their text is to fig. 30-31. 



