some Marine Invertebrata. 19 



ECHINODERMATA. 

 ASTERIAS ? 



Ophiura. — 0. telactes, O. phosphorea. 



ACALEPHA. 



Pelagia. — p. phosphorea, P. noctiluca. 

 Oceania. — 0. Blumenbachii, 0. pileata, O. hemisphaerica 

 (Thaumantias), 0. lenticula, O. microscopica, O. scintillans. 

 Beroe. — B. falgens, B. rufescens. 

 Cydippe. — C. pileus. 

 MxEMiA. — M. nonegica. 



Polypi. 



Penxatula. — P. phosphorea, P. grisea, P. rubra, P. argentea. 

 Veretillum ? 

 gorgoxia ? 

 Sertularia ? 

 Alcyoxia ? 



Infusoria. 



Ceratium. — C. tripos, C. fusus. 



Peridixium. — P. Michaelis, P. acumiiiatum, P. furca. 



Prorocextrum. — P. micans. 



Stextor ? 



Syxch.eta. — S. baltica. 



Noctiluca. — N. mUiaris. 



AVe believe that the above hst is far from complete, at least as 

 regards marine animals. Om- own observations enable us to add 

 at least two species of Polyno'e, one species of Syllis, some spe- 

 cies of allied genera, and one or two of Ophiura*. 



* In the above list of phosphorescent Crustacea, Oniscus fulgens is a 

 Sapphirina ; and the Carcinium probably belongs to the same genus (^see 

 Silliman's Joum. [2] ix. 133). Regiiliis, Euphausia, and Cypridina are 

 other phosphorescent genera, as observed by the writer ; and also Lucifer 

 according to Thompson (Zool. Researches, p. 58), and Thysanopoda, Edw- 

 Cypridina is evidently the genus of the species referred to bv Reville as 

 observed to be phosphorescent on a voyage to India (Mem. de" I'Acad. des 

 Sci., Savans Etrangers, iii. 267, and Thompson's Zool. Res. p. 41). 



Scyllarus must be incorrectly added to the list, as there are no oceanic 

 species of the genus. The error is moreover evident from the fact that the 

 reference of the phos]ihorescent Crustacea to this genus was made before 

 the species were well imderstooil. Cajrtain Tuckey who states the facts, in 

 his Voyage to the Congo, has the words, " with little Crustaceous animals 

 of the Scyllarus genus (attached to them [Sa/^^]),"— evidently inconsist- 

 ent with the genus Scyllarus, which includes large species of verj* different 

 habits. The term was probably meant for Squilla, and the species mav 

 have been Schizopods of the family Eupbausidae. — J. D. Dana. 



2* 



