KOFOID AND SWEZY: UNARMORED DINOPLAGELLATA 171 



G. polyphemus var. roscum, {1SS7 ) ^Pmcchetia rosea (Pouchet) emend. Kofoid and 



Svvezy. 

 G. gracile var. criguum, (1883) =incrriac scdis. not G. gracile. 



G. punctatuin var. grammat-icum (1887) ^ G. grammaiicum (Pouehet) Kofoid and Swezy. 

 G. pseudonoctiliica (1885a). 

 G. punctatum, (1887). 

 G. wilczeki, (1894). 



Biitschli (1885) added no new species to tlie genus, bnt includes in it 

 Pouchet's G. archimedes and Bergii's G. spintlc. Schilling (1891a) added to 

 the fresh-water sjiecies the following: G. eariiiatHm; G. hi/alinHm= Spiro- 

 din'noti Ityaliunm (Schilling) Leramerniaun (1900) =^ Gi/rodinrmn Jiyalinum 

 (Schilling) Kofoid and Swezy; G. paradoxuni, and G. i^ii-nUttm "= Gi/rodinkini 

 pusillum (Pouehet) Kofoid and Swezy. 



Levander (1894) added G. fissum, Avhich Avas changed, by Lemmermann 

 (1900) to Spiyodinium fssnm and by us to GijrodimHm fssum. Schiitt in 

 his first treatment of the subject (1895) included the species Spirodiniiirn 

 (=Gyroduiium) and C odd od in turn, in Gymnodinium, but the following year 

 (1896) he established these two genera, making Gymnodinium spirale Bergh 

 the tyjie for Spirodinmm and Gymnodinium strangidatum (Schiitt) the type 

 for Cocldodininm by monospecific citation. He failed, however, to sort oi;t the 

 representatives of these two new genera from the remaining twenty-two new 

 species which he had earlier described as Gymnodinium. These are given in 

 the following list with their present allocation, if changed : 



Gymnodinium spirale var. acuta ^^Spirodinium spirale var. acutum (Schiitt) Lemmer- 

 mann (1899) ^ Gijrodinium acutum (Schiitt) Kofoid and Swezy. 



G. constrictum = Cochlndimum constrictum (Schiitt) Lemmermann (1899). 



G. contortum = Gyrodinium contortum (Schiitt) Kofoid and Swezy. 



G. carnutum=Spirodinium schuettit Lemmermann (1899) = Gyrodinium cornutum 

 (Seliiitt) Kofoid and Swezy. 



G. cucumis. 



G. diploconus. 



G. fusus. 



G. geminatum^Cochlodiniiim geminatum (Schiitt) Lemmermann (1899). 



G. gleba. 



G. lunula. 



G. spirale var. mitra = Spirodiiuuiu. spirale var. milra (Schiitt) Lenuuerniauu (1899) = 

 Gyrodinium mitra (Schiitt) Kofoid and Swezy. 



G. spirale var. obtusa =^ Spirodinium spirale var. obtusum (Schiitt) Lemmermann (1899) 

 ^Gyrodinium obtusum (Schiitt) Kofoid and Swezy. 



G. opimum = Gyrodinium contortum Kofoid and Swezy. 



G. ovum ^= Gyrodinium ovum (Schiitt) Kofoid and Swezy. 



G. parvulum = Gyrodinium parvulum (Schiitt) Kofoid and Swezy. 



G. spirale var. pepo^ Spirodinium spirale var. pepo (Schiitt) Lemmermann (1899) = 

 Gyrodinium pepo (Schiitt) Kofoid and Swezy. 



G. spirale var. 2}i»yids = Spirodinium spirale var. pinque (Schiitt) Lemmermann (1899) 

 = Gyrodinium pinqiie (Schiitt) Kofoid and Swezy. 



