BY R. VOX LEXDEXFELD, PH.D. 923 



Campanulavia Breviscyphya, Sars (1), Agassiz (2) describes it as 

 Clytliia poterium. 



In the variety Makrogona — all Australian specimens belong to 

 it — the Gonophors are nearly as high as the Hydrocaulus of the 

 Trophosome, and 8-10 times as large as the Hydrotheca. 



Aledusoid buds are produced in the Gonophor, which do not 

 become free, in fact they do not possess a properly developed 

 Umbrella at the time when the sexual products are matured. 

 Judging from Hincks's (3) figure, the European Campanulina 

 caliculata produces similar Aledusoid buds, and T therefore do not 

 hesitate to place this species in this family. It appears, as I have 

 often taken occasion to mention, extremely likely, that many other 

 species will wander from the Hydropolypinae to this Subordo, so 

 particularly the Genus Sertularia. 



EXPLANATION OF PLATES XL. to XLIII. 



Fig. 1. — Monosklera pusilla, R. v. L. A small Colony in Natural size. 



Fig. 2. — Monosklera pusilla, R. v. L. Part of a shoot. AA., Oc, 1. 



Fig. 3. — Monosklera pusilla, R. v. L. An Internode with two Hydrothiere. 



C, Oc. II. 

 Fig. 4. — Lafcea cylindrica, R. v. L. A , Oc. II. 

 Fig. 5. — Lafcea cylindrica, R. v. L. C, Oc I. 

 Fig. 6. — Diphasia rectangularis, R. v. L. Natural size. 

 Fig. 7. — Diphasia rectangularis, R. v. L. Part of a pinna. AA., Oc. II. 

 Fig. 8. — Diphasia rectangularis, R v. L. A male Gonophor e. AA.,Oc. II. 

 Fig. 9. — Thuiaria quadridens, Bale. With a Gonophore. AA., Oc. I. 

 Fig. 10. — Pandsea minima, R. v. L. A., Oc. 111. 

 Fig. 11. — Pandrea minima, R. v. L. An Exumbral MeridianaMine. C, 



Oc, II. 

 Fig. 12. — Pandasa minima, R. v. L. Part of the Exumbral MeridianaMine 



treated with osmic and acetic acid. 12, Oc. I. The outer Epithel 



removed from the upper part of the Figure. 



(1.) G. 0. Sars. Campanularia Breviseyphia. Bidrag til Kundskaben 

 om Middelhavet's Littoral-Fauna, 1S57, 49, pi. 1, figs. 12, 13. 



(2.) L. Agassiz, Clytia poterium Contribution to the Natural History 

 of the United States Acalephas, Vol. IV., p. 297, pi. XXVIII. 



(3 ) T. Hincks. A History of the British Hydroid Zoophytes, Vol. II ., 

 pi. XXXI , fig. 2d. 



