BEITISH PALAEOGENE BETOZOA. 227 



Note oi^ the Use of the Name Oeniellaria.—'Yh.e name Gemellaria was first invented for a genus of Brj-ozoa 

 by J. C. Savigny somewhere abont the year 1810 ; it was not, however, published till 1826 [Audouin, 

 No. I, p. 242J, and then only in the Prench form of Gemellaire ; so far as I am aware, it was iirst used in a 

 Latinized form in 1830 by BlainviUe [No. 2, p. 425], who did not himself accept it. Before the publication 

 of Gemellaria or Gemellaire the genus had been described in 1821 by Lamourous [No. 2, p. 7], who named 

 it Loricaria. Audouin, who completed Saviguy's work when the latter was disabled by ill-health, of course 

 treated " Gemellaire " as a manuscript name and accepted Loricaria. Most subsequent authorities, however, 

 have accepted Gemellaria and date it from 1805, 1809, or 1811. Johnston [No. 2, p. 293, footnote] seems 

 to have entertained doubts as to the accuracy of this proceeding, but accepted it on the idea that copies 

 of some work of Savigny's had been placed in the principal libraries : he obviously could get no reliable 

 information regarding it. 



Mr. Hinoks accepts the genus and quotes as its author " Savigny, 1811." The only reference he o-ives in 

 his Bibliography [No. 2, p. 588] to Savigny is " leonographie des Zoophytes de I'Egypte,'' from the ' Description do 

 I'Egypte.' Miss Jelly [No. i, p. 284] quotes the same work, and so does MacgiUivray [No. 3, p. 223], who, 

 however, adds " not seen by me." I regret to have been unable to find any such work ; there is none such in 

 the Natural History Museum copy of the ' Description de I'Egypte,' nor is any referred to in " A Bibliographical 

 Account and Collation of ^ La Description de I'Egypte ' " (London Institution : private circulation, 1838, 8vo, 

 76 pp.). None of the ordinary bibliograx)hical works of reference give any information regarding it. 

 I therefore cannot help concluding that the authorities who have quoted this mysterious " leonographie " 



really refer to Audouin's " Explication sommaire des planches de Zoophytes de I'Egypte " That the 



date of this is 1826 and not 1811 admits of no doubt : the work was only entrusted to Audouin for completion 

 in 1825, and monographs issued in 182 1 are quoted. Loricaria has therefore the prior claim to adoption, but 

 unfortunately it had been previously used among fishes. Fleming [No. i, p. 541], therefore, in 1828 renamed it 

 Notamia. N. lorieata he clearly regarded as the type, for the only other species he associated with it 

 {N. hursaria) he made the type of a new genus, Epistomia. Lamouroux did not include this latter species 

 in his Loricaria, but in the Sertularian Dynaiiema [No. i, p. 79]. Fleming, it must be remembered, only 

 proposed Notamia as a change of name owing to the preoccupation of Loricaria. The name Notamia cannot 

 therefore be separated from its type species and applied to one which both Lamourouxand Fleming assigned to 

 another genus. There is therefore no option but to follow Fleming and substitute Notamia for Gemellaria 

 and regard the species bursaria as the type of Epistomia. 



The only alternative is to accept Blainville's name Gemicellaria [No. i, p. 425], proposed in 1830 but there 

 does not seem any sufficient reason for a departui'e from the ordinary rule of nomenclature. 



Suborder ATHYRIATA. 

 Family MEMBRANIPORID^. 



Subfamily Membeaniporin^. 



Genus Membeanipoea, BlainviUe, 1834. 

 [BlainviUe, No. 2, p. 447.] 

 Diagnosis.^ Membraniporidse in which the opesial aperture is generally of a simple 

 form and the lamina is absent or but slightly developed. 



' It will be seen from this diagnosis that in deference to recognized opinion AmpAiblestrum is accepted ; it 

 appears to be an artificial but very convenient group. 



VOL. XIII. — PART vr. No. 2. — Jwie, 1893. 2 h 



