106 Vnifi r>tit)i of California ruhlicationf; in Znologij L^''""22 



The following Ploiina vvt-i-c only r'ccoi-dfd oih'l- or twice, or wore 



only recognized in living material. 



Asoomorpha ecauiiia I'erty. 



Aaplanchna priodonta Gosse. Once, I. 



Asplanchna sieboldii Leydig. 



Asplanchnopus multiceps Schrank. Once, 1 ami 111. 



Diaschiza exigua Gosse. 



Diasi'hiza gibba Ehrbg. 



Diurella porcellus Gosse. Once, II and III. 



Diurella tenuior Gosse. Twice, I, and once, II and III. 



Euchlanis dilatata Ehrbg. Once, III. 



Filinia cornuta Weisse. Once, II. 



Lecane ungulata Gosse. Once, III. 



Lepadella ovalis Mull. 



Macrochaetus sut)quadratus Perty. Once, III. 



Monostyla cornuta Miill. 



Monostyla lunaris Ehrbg. 



Mytilina mucronata Miill. 



Notholea longispina. 



Notholca egg, attached. Once, III. 



Notommata aurita Miill. Twice, I, once. III. 



Plat3'ias quadricornis Ehrbg. 



Pleurotrocha petromyzon Ehrbg. 



Ehinoglena frontalis. Once, II. 



Trichocerca endoparasitized. Once, II. 



Trichotria curta Voronkov. Twice, II, once. III. 



Scirtopoda 

 Pedalia nvira Hudson was found in very small numbers onee or 

 twice in fresh material from Stockton Channel but not in regular 

 catches for 1913. 



GASTROTRICHA 



Chactonotus nodicaudus Voight and another species were each 

 recorded onee at Station I. They are known to be present in the 

 locality in larger numbers and are, no doubt, strictly adventitious. 



ENTOMOSTEACA 



Station I Station II Station III Daily Hourly 



Average 560,149 22,022 22,551 1,498,724 83,099 



With the exception of three specimens of Gammarus found at Sta- 

 tion III the Cnistacea recorded consisted of Entomo.straca. Of this 

 group only the Cladocera and Copepoda were of any iini)ortauee in 

 our plankton. Entomostraca were recorded in every month of the 

 year at all stations, but the numbers were small everywhere during 

 the first three months and there were some misses at all stations at 



