PLATE XXXVII. 



Drawn by me from living specimens in the Canary Island Lanzerote, in February 1867. 

 The signification of the characters is the same in all the figures : — 



u. Angles of the nectophores. 

 if". Ostium of the iiectosac. 

 ml. Dorsal face of the nectophore. 

 w. Ventral face of the nectophore. 

 u>. H ydroecium. 



v. Velum. 

 uk. Overlapping wing (Valvula hydroecii). 

 use. Left face of the apical nectophore. 



Iff. Subunibrella. 



nk. Coryphal edge of the umbrella. 



cs. Somatocyst. 



cd. Dorsal canal. 



cv. Ventral canal. 



ex. Right canal. 



cl. Left canal. 



■ ■•'. Ring-canal. 



a. Trunk of the siphosome. 



i. Buds of cormidia. 



Fig. 



Fig. 2 



K,.,- 



Fig. 



Figs. 



Fig. 



Fig. 



Fig. 



Bassia obeliscus, n. sp. (p. 160). 



Lateral view of the complete corm. The main axis of the smaller 

 (apical) nectophore is nearly horizontal, and perpendicular to the 

 vertical main axis of the larger (distal) nectophore ; the former is 

 seen from the left side, the latter from the right side. The sipho- 

 some, arising from the apex of the hydrcecium in the apical necto- 

 phore, passes through the funnel-canal of the distal nectophore and 

 projects freely through its basal aperture, .... 



Lateral view of the complete corm, from the opposite side. The first 

 nectophore is seen from the right side, the second from the left side, 



3. Ventral view of the complete corm. The smaller (proximal) necto- 



phore is seen from its basal side, the larger (distal) nectophore from 

 its ventral side, ....... 



4. Oblique view of the complete corm. The smaller (proximal) necto- 



phore is seen from the apical edge (nk), the larger (distal) nectophore 

 half from the left, half from the dorsal side, 

 . Different views of the first (proximal or apical) nectophore, . 



Fig. 5. Ventral view of the first nectophore. The somatocyst (cs) is visible in 



the tipper half, the hydrcecium (ui) with the siphosome (i) in the 



lower half. 

 Fig. 6. Dorsal view of the first nectophore. The somatocyst (cs) is visible in 



the upper half, the nectosac (w) in the lower half. 

 Fig. 7. Apical view of the first nectophore. cs, Somatocyst. 

 Fig. 8. Basal view of the first nectophore. wo, Aperture of the nectosac ; 



o, velum. 



Basal view of the second (distal or basal) nectophore. The nectosac 

 with its small circular aperture, the velum (v), and the four radial 

 canals are visible in the left-hand (dorsal) half of the figure ; the 

 opening of the funnel-canal (ui) and the included siphosome (a) in 

 the right-hand (ventral) half. (For "n" read "cc"), 



10. Apical portion of the second nectophore, exhibiting the coryphal 



apophysis or the articular condyle, through the opening of which 

 the siphosome (a) enters into the hydrcecial canal (ui), 



11. Apical nectophore of a variety (?), or another species (?), 



Diam. 



5-8 



9. 



x 8 

 x 6 



x 6 



x 6 



x 8 



x 8 



x 8 

 x 8 



