742 EDWARD T. BROWNE. 



Maas (1904) has just published a preliminary revision ot the genera belonging to the 

 Cunanthidae and Aeginidae, but a revision of their species is not given. Maas proposes to 

 xinite the genera Aeginella and Solmundella, and to transfer the latter genus from the Solmaridae 

 to the Aeginidae. This classification I have adopted. (See p. 745.) 



SIPHONOPHORA. 



Order Calycophorae, Leuckart. 



Family Diphyidae, Eschscholtz, 1829. 



Genus Diphyes, Cuvier, 1817. 



Generic Characters. Diphjadae with two angular, slenderly pyramidal nectophores, 

 of similar form and subequal size, one placed behind the other. The first nectophore with a 

 conical or campanulate hydroecium. Cormidia without special nectophores. Bracts pyramidal, 

 conical or spathiform, with a pointed apex. Phyllocyst simple, usually large and ovate, without 

 radial canals. 



Diphyes chamissonis, Huxley, 1859. (PI. LIV. fig. 6.) 



Diphyes chamissonis, Huxley (1859, p. 36, PI. I. fig. 3). 



There are five anterior nectophores in the collection and as they are more like Huxley's 

 figures of Diphyes chamissonis than any other species that I know of, I have placed them 

 under this name. 



Description of the Specimens. The nectophore is about 10 — 12 mm. in length, 4 mm. 

 in width and 3 mm. in depth. It is a long slender pyramid, slightly more curved on the 

 posterior side than on the anterior. The ex-umbrella has three prominent ridges without 

 serrations ; one anterior and two lateral which are situated over the nectosac. The posterior 

 side of the ex-umbrella is flat. The shape of nectophore is not exactly like Huxley's figure ; 

 as it is not quite so broad and it tapers more towards the apex. 



The nectosac is nearly as long as the umbrella, cylindrical and tapering towards its apex 

 almost to a point. The nectocalycine canal runs a considerable distance down the hydroecium 

 and enters the nectosac not far from its mouth. Here it joins a pair of radial canals which 

 run up nearly to the top of the nectosac, then curve over and descend to the circular canal. 

 There is also a short radial canal which runs down from the junction of the nectocalycine canal 

 to the circular canal. The mouth of the nectosac is protected by three short triangular teeth, 

 which have slightly serrated edges. 



The hydroecium extends about half way up the umbrella. It is somewhat triangular 

 in shape and has a consj)icuous constriction near its mouth. At this point the ajjerture is nearly 

 circulai'. 



The somatocyst is cylindrical in shape and tapers down towards the hydroecium. One 

 specimen has a small oval somatocyst, but in the other specimens the somatocyst is cylindrical 

 and shows only a slight variation in length and shape. At the top of the somatocyst there 

 is a small yellowish body, irregular in shape, which is probably the remains of an oleocyst. 



