[97] ALBATROSS EXPLORATIONS. 599 



the animal clings to a foreign body. This specialization m,iy also serve 

 for the capture of prey, since Pterophysa has no tentacles for that pur- 

 pose. The genus was found clinging to the "dredge rope" at station 

 2227. Collected in 1884. 



Angelopsis globosa, gen. et sp. no v. 



Lesson, in his "Histoire des Zoophytes Acalephes," figures and de- 

 scribes an interesting medusa, discovered by Rang, to which he ga\ e 

 the name Angela. This genus lies between Fhysalia and other Physo- 

 phores, and, filling that gap, is of greatest interest. Unfortunately, since 

 the original description by Lesson, Angela has never been rediscovered. 

 Tiie collection of the "Albatross" contains a Physophore closely allied 

 to Angela, to which the name Angelopsis seems aijprojjriate. There are 

 two specimens of Angelopsis from station 2105, in latitude 37° 50' 00", 

 N., longitude 73° 03' 50" W., in a depth of 1,395 ftithoms. Angelopsis is 

 intermediate in structure between Rhizophysa and FItysaUa, and in my 

 judgment shows that Dr. Clmn is right in separating these genera from 

 the other Physophores with which they have so little in common. 



Pelagia cyanella Per. et Less., Stomolophvs meleagris Ag., Aurelkijiari- 

 dula Per. et Les., and an uuknown Aurelian are found in the collection. 

 There are two specimens of the latter, which is probably a new genus. 



In this brief enumeration I have simply made mention or touched upon 

 the salient features of my new genera, without entering upon the many 

 morphological considerations which such unusual forms suggest. 1 have 

 not enumerated the new species of hydroid gonophores, since at this 

 stage of my research it would be impossible for me to rightly estimate, 

 in the case of most of them, whether their characters are generic or 

 specific. From the nature of the case these small, almost microscopic, 

 medusae require a longer time for identification. The whole collection 

 confirms a fact which every student of marine zoology who has collecte<l 

 in the Gulf Stream has long known, that these waiters teem with a 

 medusan life, of which only a small fraction has yet been described. 



The^ folio wing list contains the majority of the Medusae sent to me. 

 Several doubtful species are omitted. The majority of the latter are 

 hydroid gonophores of small size and doubtful afl&nities. 



AOEASPEDA. / , 



AtoUa Verrillii, sp.noy. 9 - ... 



Aurelia fluvidula Per. et Less. 



Ephyroides rotaformis, gen. et sp. nov. 



Nanpliantopsis Diomedece, gen. et sp. nov. 



Periphylla hyacinthina Steenstrup. 



Periphylla, sp. nov., forsitan gen. nov. 



Stoniolophus meleagris Ag. 



Aurelia, incertae sedis. 



