ANTHOMEDUSAE 5 



The specimen is 6 mm. high, 4-5 mm. in diameter. The manubrium has been artificially stretched 

 to a considerable length, causing the gonad to be divided into two parts separated by an extremely 

 thin thread consisting of the mesosarc layer alone. Apart from this thread-like portion, the manubrmm 

 is completely covered by the gonad from its base almost to its extreme end. The four marginal 

 tentacles are characteristic of Sarsia gracilis and terminate in a large, oval knob. They are covered 

 throughout the greater part of their length with groups of nematocysts, which towards the distal 

 end of the tentacles are confluent, forming transverse bands or almost complete rings. Therefore 

 I do not hesitate to refer the specimen to S. gracilis, in spite of the prolongation of the manubrium 

 which undoubtedly is due to mutilation. 



Distribution. South Africa, Falkland Islands. 



Family Tubulariidae 

 ? Corymorpha sp. 



(PI. I, fig- I) 

 Occurrence: St. 256. 23. vi. 27. 35° H' S, 06° 49' E, off South-West Africa. Net: TYF 850-1100^) m. 



I specimen. 

 The specimen is 1-5 mm. high and wide, globular, the gelatinous substance very thick. The four radial 

 canals and the ring-canal are fairly broad ; a long apical canal reaches almost to the top of the umbrella. 

 There are no marginal tentacles, not even rudimentary bulbs. The manubrmm is carrot-shaped, 

 completely surrounded by the gonad except at the narrow distal end, which reaches a little beyond 

 the level of the velar opening. The musculature of the subumbrella is particularly powerful. 



The complete absence of tentacles might indicate that this was a Pennaria, but the presence of a 

 well-developed apical canal points rather to the tubulariid medusae formerly named Amalthaea, 

 which are abortive medusoids derived from hydroids of the genus Corymorpha. 



Euphysora furcata Kramp 1948 

 (PI. I, fig. 2) 

 1948a Euphysora furcata Kramp, p. 19, figs. 7-8 (Plate). 



OccuRRENCE-St 2^0 17 vi. 27. 36° 09' S, 05° 33' W. East of Tristan da Cunha. Net: TYF 30o(-o) m. i specimen. 

 ?t 1.86 2 V ; 02° 30' 24' N, 50° 46' 24" E Off Somaliland, East Africa. Net: TYFB 550^0 m. 1 specimen. 

 s!: 1604. 29 x.'35 -° 34' ^4'' 1 oV 09 48" E. Off Walvis Bay, South-West Africa. Net: TYFB 182-0 m. 



I specimen. 

 In the specimens from the two first mentioned localities, the main tentacle is well extended showing 

 the twice dichotomously branched terminal end with its four nematocyst knobs. In one point they 

 differ from the type specimen: there is no indication of perradial divisions of the gonad, which com- 

 pletely encircles the stomach. In both specimens, which are 4-4-5 mm. high, the tentacle opposite 

 the main tentacle is half as long again, thin and unbranched, and the two lateral tentacles are short 

 and conical. In the third specimen, which is 8 mm. high and 6-5 mm. wide (St. 1604), the tentacles 

 are much contracted (PI. I, fig. 2). This specimen, therefore, resembles Euphysora valdtvrae Yan- 

 hoflen (iQii, p. 198). In my original description (m^a) I compared these two species, and I still 

 mfrain my previous statement' that 'if Vanh5flFen's description is not altogether wrong, the two 

 „.edusae cannot belong to the same species'. From a superficial examination, the P-ent ^Peamen 

 might be mistaken for E. .aldwiae (as a matter of fact, my footnote (1948a, p. 20) alludes to this 

 specimen), but in contradistinction to E. valdiviae the tentacle opposite the main tentacle has a thread- 

 like prolongation, the branches of the main tentacle have nematocyst knobs, and there is no trace of 



