PLATE XXIV. 



Fig. 1 66. Batliypliysa abyssorum Studer. Pneumatophore of Studer's original material, sketch made in 



Berlin. Natural size. 



p.o ^ pneumatocodon, p.sacc. = pneumatosaccus, p.e = remains of pneumatochone. 

 Fig. 167. Pteropliysa grandis Fewk. (Cat. 6). A young siphon (on Plate XIX indicated as s. \). 2 v. The 



lateral ptera well-developed. 

 Fig. i68. Another siphon of the same (on PI. XIX indicated as s. 2). 2 v. The lateral ptera as small 



longitudinal lines. At its base a tentacle and a young gonodendron. 

 Fig. 169. A third mature siphon of the same (on PL XIX indicated as s. 3). 2 >(. No lateral ptera. Long 



tentacle at the base of the siphon. 

 Fig. 170. Median longitudinal section through a siphon (Cat. 8 glass b \ \\ 2) of the same. 260 X. 

 Fig. 171. Part of the stem of Pterophysa (Batliypliysa) Studer i, which does not belong to the specimen 



of PI. XXIII, fig. 160, but was found in the same bottle. 0,5 ;■• . 

 Fig. 172. Rhizophysa Eysenliardti Ggbr. (Cat. 20 A.), a tentacle (/) with tentilla (ti, ti). 11 X- 

 Fig. 173. Batliypliysa Sibogae nov. spec. (Cat. 27) see PI. XX, fig. 14S. Base of a siphon (t.) with tentacle 



and young tentilla [ti). 13,5 ;'. 

 Fig. 174. Physalia ntriculus Lamartiniere. (Cat. 4). Part of a gonodendron showing a gelatinous polypoid, 



2 palpons, a medusiform. gonocalyx and 11 gonophores. 15 ■. 

 Fig- 175- The main-branch of a gonodendron of the same with the principal side-branches (A — Fj a 



gelatinous polypoid, gonophores and a siphon (?). 7 a. 



