436 MEMOIRS OF THE UNIVERSITY OF CALIFORNIA 



nudum, Ponelietia haltira. In 1906 Dogiel described P. arm at a, a species with 

 nematocysts. This we transfer to Nematodinium gen. uov. Dogiel also by 

 erroneous citation adds Gijmiiodininm polyphemns var. ma</ua to the nomina 

 nuda referalile to Pouclietia. 



Our emendations to the gemis exclude from it those species without torsion 

 (Pouchefia nigra (Pouchet) Lemmermann and P. ochrea Wright). These we 

 l^lace in Protopsis gen. nov. We also exclude all ocellate types with paradinial 

 lines and posterior prod {Pouchctia eornuta and P. cochlea of Schiitt. 1895) 

 which belong in Erijtliropsis, and one new ocellate species without paradinial 

 lines and with rudimentary prod which is the type species (crassicaudata) of a 

 new genus P voter ythropsis. All ocellate species with nematocysts we place in 

 Nematodinium gen. nov. This transfers Dogiel's (1906) Pouchetia armata to 

 Nematodinium, to which we add two new ocellate species, A^. partitum and .V. 

 torpedo. 



To the residvie of six previoush' described species remaining in Pouchetia, 

 to w^it, P. fusus Schiitt, P. compacta Schiitt, P. juno Schiitt, P. panamensis 

 Kofoid, P. pohjpJiemus (Pouchet) emend., P. rosea (Pouchet) emend., we add 

 twelve new species from the plankton of the Pacific off La Jolla, California, 

 as follows: P. alba, P. atra, P. maculata. P. maxima, P. poucheti, P. purpu- 

 rescens, P. purpurata, P. ruhescens, P. striata, P. suhnigra, P. violescens, and 

 P. voracis, and a thirteenth, P. sehuetti nom. sp. nov., based on Schiitt's (1895) 

 figures of P. rosea (Pouchet). 



SuBGEXERA OF Pouchetia 



Subgenus 1. Pouchetia suligen. nov. 



Ocellus not concentrated or integrated ; lens in two or more parts, scattered 

 or ai'rauged in one row ; melanosome in the form of a diif use network of scat- 

 tered disconnected spherules. Type, P. fusus Schiitt. This subgenus includes 

 besides the type, P. alha sp. uov., P. poucheti sp. nov., P. purpurata sp. nov., 

 and P. sehuetti nom. sp. nov. 



Subgenus 2. Pouchetiella subgen. no-s'. 



Ocellus integrated ; lens spheroidal, laminate, or composed of closely applied 

 segments and elongated, massive melanosome, not sending oiit stout pseudo- 

 l^odia and not parted into spherules, closely applied to the base of the lens and 

 usually containing a red or bro\^'n sensory core. T}^e species, P. violescens. 

 This svibgenus contains in addition to the t>^e the following species: P. atra 

 sp. nov., P. compacta Schiitt, P. juno Schiitt, P. maculata, P. ma.rima sp. nov., 

 P. panamensis Kofoid, P. parva Lohman, P. poli/phemus (Pouchet). P. purpur- 

 rescens sp. nov., P. rosea (Pouchet) emend., P. ruhescens sp. nov., P. striata 

 sp. nov., P. suhnigra sp. nov., and P. voracis sp. nov. 



