some Marine Invertebrata. 19 



ECHINODERMATA. 

 ASTERIAS ? 



Ophiura.~0. telactes, 0. phosphorea. 



ACALEPHA. 



Pelagia.— P. phosphorea, P. uoctiluca. . , . 



Oceania.— 0. Blumenbachii, 0. pileata, 0. hemisphaenca 

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

 Beroe.— B. fulgens, B. rufescens. 

 Cydippe. — C. pileus. 

 Mnemia. — M. norvegica. 



Polypi. 

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

 Veretillum ? 

 gorgonia ? 

 Sertularia ? 

 Alcyonia? 



Infusoria. 



Ceratium.— C. tripos, C. fusas. 



Peridinium.— P. Michaehs, P. acmiimatum, P. turca. 



Prorocentrum. — p. micans. 



Stentor ? 



Synch^ta. — S. baltica. 



NocTiLtJCA. — N. miharis. 



We beheve that the above Ust is far from complete, at least aa 

 rea-ards marine animals. Om- own observations enable us to add 

 at least two species of Pohj7ioe, one species of Sylhs, some spe- 

 cies of allied genera, and one or two of Ojihiura^. 



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

 Sa««/«ri«a; and the Carcinium probably belongs to the same genus ^see 

 Silliman's Journ. [2] ix. 133). Regulus, Euphausia, and Cypridina ^e 

 oheTphosphoreseent genera, as observed by the ^vnter; and also I^.c//6r 

 according to Thompson (Zool. Researches, p. 58), and Thysanopoda,m^'. 

 Cypridh^ is evidently the genus of the species referred to by Revi le as 

 obLrved to be phosphorescent on a voyage to India Mem. de 1 Acad, des 

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



Scyllarus must be incorrectly added to the hst, as thei-e are no oceanic 

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

 reference of the phosphorescent Crustacea to this genus was made before 

 the species were well understood. Captain Tuckey who states the facts, in 

 his Voyage to the Congo, has the words, " with litt^^. Crustaceous anima s 

 onhe^Scyllaras genus%ttached to them [S«?/,«]),"-evidently mconsist- 

 ent with the genus Scyllarus, which includes large species of vei-y different 

 habHs The term was probably meant for Sqmlla aui rtie species may 

 have been Schizopods of the family Euphausida-.— J. D. Uana. 



