We have no hesitation in making a new genus for our three specimens, Fkwkes' description 

 not being quite satisfactory. This is entirely due to the bad preservation of his unique specimen. 

 It may perhaps also be related to H.veckel's Auralia (88b p. 301) but until the publication 

 of his promised work "the Morphologj- of the Siphonophorae" nothing definite can be said of 

 this relationship. 



Angelopsis globosa Fewk. was captured by the Albatross at a depth of 1395 fathoms 

 (about 2553 M.), Auralia profunda Hkl. seems to be also a deep-sea Siphonopliore as are all 

 the other Auronectae [Stephalia: i 1 70 and 945 M., StcpJwnalia 503 M., Rhodalia 1098 M.). 



That the Angelidae [Auronecta Hkl.) sometimes come closer to the surface is indicated 

 by the depths of 100 and 112 M. given for the stations 15 and 289 where our specimens were 

 captured by the Siboga expedition. As the specimens were captured by trawl, they may of course 

 have attached themselves, the trawl going up to the surface from the depths of 100 M. and 

 112 M. It seems therefore possible that Angelidae sometimes come near the surface of the sea 

 and we agree with Fewkes (89a p. 149) that the e.Ktraordinary development of the pncuma- 

 tophore and of the nectophores rather indicates life at or near the surface of the water. 



Of our three specimens Cat. 10 B. (PI. XVIII, fig. 139) is the smallest, the length of 

 the pneumatophore measuring 4'/., mm., the greatest breadth 2,5 mm. The greatest breadth of 

 the pneumatophore and the sipho.some which is situated underneath the former is about 8 mm. 

 It is the smallest Angelid which has yet been found, the pneumatophore of I-'ewkes' Angelopsis 

 having a diameter of 7 — 10 mm. The appendages on the lower part, on the siphosome are 

 very poorly represented by some very small buds. Our sketch was made after the specimen 

 had been halved. 



Cat. 10 A. (PI. XVIII, fig. 137) belongs to the same station as Cat. 10 B., is much larger, 

 the siphosome especially having increased in size. Fig. [37 of Plate XVIII was made after a 

 photograph of the same and shows a voluminous muscular pneumatophore (length h 6 mm., 

 greatest breadth 4 mm. /«.) which bears apically some very well-marked pigment-spots ; the lower 

 part of the nectosome consists of radial muscular bands beginning immediately underneath the 

 groove, which indicates the division between the float and that part of the nectosome which in 

 the living state constitutes the place of attachment of the nectophores. That this is the case, we 

 can still see by observing the position of the two nectophores which have still remained attached 

 to the nectosome. (PI. XMII, fig. 137;/, «). Owing to the preservative fluid the two mature 

 nectophores, situated to the left of the corm are perhaps not easily to be recognized as such. 

 We will later on describe their e.xact position on the nectosome. 



The siphosome of Cat. 10 A. shows a confused heap of appendages, out of which only 

 a few siphons (PL XVIII, fig. i37.<') and some very large tentacles (PI. XVIII, fig. 137/*) are 

 to be recognized. It was absolutely impossible at first sight to give any definite place or name 

 to all these appendages; we hoped to find out more of their e.xact nature when looking through 

 the microscopic sections, but we have been in many cases sadly disappointed, the ectoderm and 

 entoderm being nearly always entirely destroyed. The only appendages of which we will speak more 

 fully are those situated on the opposite side of the nectophores (on the right side of our drawing). 



Again (juite difi'erent in outward appearance is Cat. 22 (PI. Will, fig. 138); the 



