292 CTENOPHORiE. Part II. 



Buceplialun Less. 1843. 



B. Reynaudi Less. — Callianira Buceplialun I?e//ii. — Ofi' Ccijlon 



(Reynaud). 

 Axiotima Esch. 1829. — Axia Esch. 1825. 



A. Ciai'dei Esch. — Pacific Ocean, near ihe Equator (Eschsclioltz). 



Wliethor till'! genus belongs to ibis family, or not, is a 

 matter of doubt. Escbsclioltz's description and figure are evi- 

 dently drawn from an imperfect specimen. 

 5tli Famil^^ Ocyroe.e Less. 1843. 

 Ocyroe lluni/ 1829. 



0. crj'stallina luiiir/. — Atlantic Ocean, under the Equator, Long. 32° 



11' of Grcenirich (Rang). 

 0. fusca lUuH/. — Atlantic Ocean, off Cape Yerd Lslands (Rang). 

 0. maculata Lang. — Ainon<j the Antilles (Rang). 

 2d Sub-order. T^ENIAT^ Ag. 1800. — Cestoideaj Less. — Cestida? Gegenh. 

 (^ 1st Family. Cestoide.e Less. 1843. — Cestidte Gcgcnl. 1856. 



These family names are objectionable on account of their 

 tautonomy with the Cestoid Worms. 

 Cestum LeSueur 1813. — Sicyosoma Gcgenh. 1850? 



C. Veneris LeS. — C. Rissoanum Less. — C. breve Grdff'e. — C. Mej'eri 



Grdffe. — Sicyosoma rutilum Gegenh. (young?) — 3Iedltemmean : 

 Nlssa (LeSueur and Risso) ; Naples (Delle Chiaje) ; Messina 

 (Kiilliker and Gegenbanr). 



C. Najadis Esch. — Pacific Ocean, near the Equator (Eschsclioltz). 



C. Amphitrites 3Iert. — Pacific Ocean, under and near the Equcdor, 

 Long. 127° emd 280^ IT. of Greenwich (Mertens). 



C. Mertensii Ag. — Mentioned without name by Mertens. — Atlantic 

 (Mertens). 

 Lemniscus Q. and G. 1822. 



L. marginatus Q. and G. — Off Timor (Quoy and Gaimard) ; off' 

 New Guinea (Lesson). 



The genus Lemniscus was characterized from fragments 

 unquestionably l)elonging to the family of Cestoideo? ; but its 

 generic difference from Cestum remains doubtful. It should 

 be remembered, however, that Eschsclioltz has already pointed 

 out differences between C. Najadis and C. Veneris Avhich seem 

 rather generic than specific, and that therefore Lemniscus also 

 ma}' be a distinct genus, even though the facts observed may 

 not, for the pi'esent, justify its adoption. But Avhether the 



