"'I'sofr'] I'liOCEEDINGS OF THE J^ATIONAl, MUSEUM. 209 



with the Albatross specimens, whose luiiiie slioiild ('oiisequcntly be 

 cbanged to Ancmoniii caruea (Stiuler). 



Boloccra brcciconiis (i», I.IS). — In the lleiwit J luive expressed my 

 o])iiiioii that Ilertwig's Liponema mtiltiponim is a Boloccra from whieli 

 all the tentacles have fallen away. After an examination of the Chal- 

 lenger specimens I feel more than ever convinced that such is tlie case. 

 It is, however, as 1 suspected, specilically distinct from 1>. hrcvkornis. 



Genus Actinernus (p. 105). — There can be no doubt but that Hertwig's 

 Pohjslpkonia tubcrosa properly l)clongs to the genus Actinernus^ tliough 

 its specilic distinctness from all forms of that genus hitherto described 

 is exceedingly i)robable. 



It is interesting to note in connection with the extension of the 

 geoj^raphical range of the genus from the western basin of the Atlantic; 

 to the Pacific that Iladdon* has recently noted its occurrence in 

 the eastern portion of the Atlantic, in 750 fathoms otf the southwest 

 coast of Ireland. 



Actinostola callosa (p. 1C7). — Hertwig's J/i/sactis cr<(ssicor)iis is un- 

 doubtedly identical with this form. The tlescription given by Verrill 

 of Urticina callosa was published in '82, and Hertwig's report of the 

 C7<f^//('«^t'r Actiniaria appeared in tiie same year,as did also ai)reliminary 

 report, t It consequently is a question as to which name has the 

 priority. There can be no question as to validity of Verrill's generic 

 term, and it seems probable that his original descrii)tion, which appeared 

 in the March-April nnmbci- of iSilliman's Anierican Journal of Science, 

 slightly antedates Hertwig's preliminary report. Leaving this aside, 

 however, it seems preferable to adopt Verrill's name in its entiret}^, 

 since the term crassicornls has a prior association Avitli a member of 

 the genus Tcalia. 



Genus Chitonanthus (p. ISO). — In establishing this genus I have laid 

 stress upon two features: the presence of capitular ridges and the ab- 

 sence of bulbous enlargements at the bases of the tentacles. The un- 

 satisfactory nature of the classification of the Clumdractinina', alluded 

 to above is principally due to the imi)ortance bestowed upon the nature 

 and arrangement of the tubercles-. The specimens of Chifonauthus pec- . 

 tinatus in the Albatross show of how little importance this feature may 

 be in some cases, and it seems advisable to seek for some more (tonstant 

 characters. It is possible that these are to be found in the nature of 

 the capitulum and of the bases of the tentacles. The genus Aetinange 

 seems well markeil off, but this is not the case with (Jltondracthiia, Chit- 

 onactis, and Jlormafhidj genera established principally on the nature of 

 the tubercles, or on their arrangement. It is not iuq)robable that it 

 will prove necessary to fuse these genera into. one, removing from it, 

 however, Hertwig's Chitonanthus {Fhellia) pectinatus' and Haddon's 



* A. C. Iladdon. — Report on tlus Actiuiu' drcdj^ed oft' the southwest coast of Irelaud. 

 iu May, 1888. Proc. Roy. Irish Acad., 3d ser., Vol. i, 1890. 

 tSitziingHbor. Jeiulisch. Gcsollsch, 1882. 



Proc, N. M. \)'o If 



