a) Say - , “rs 2 = 
i 
ENTOMOSTRACA OF MINNESOTA. 49 
(Species preceded by an asterisk have been reported in America.) 
* Limnocalanus macrurus Sars. 
PLATE I, Fias. 1-4. 
Centropages grimaldii, De Guerne ’86. 
Limnecalanus macrarus var. auctus, Forbes ’87; Sars ’62; Nordquist ’88; De Guerne 
and Richard ’89; Marsh ’92. 
The subcylindrical three jointed abdomen is longer than the elon- 
gate oval six-jointed thorax. The stylets are very long, spiny and 
ciliated. Antenne hardly reaching the penultimate abdominal seg- 
ment. The claw of the female fifth foot armed with fine, sharp spines. 
The claw of the male right fifth foot is thick and bears two spines 
internally. Color generally hyaline. Length about 2.0 mm. 
Limnocalanus sinensis Poppe. 
De Guerne and Richard ’89. 
This smaller and rather depauperate form from China may be 
recognized by the fact that the claw of the fifth foot of the female has 
strong and irregular teeth and that of the right fifth foot of the male 
is slender and flexuous. The abdomen is shorter than the thorax. 
Length 1.65 mm. 
GENUS EURYTEMORA Giesbrecht. 
(Temorella of Claus, Poppe, Nordquist, Herrick.) 
Relatively robust; cephalothorax six-jointed; frontal processes 
present. Abdomen of the male, five-jointed, of the female, three- 
jointed. Caudal stylets slender, often very long relatively; apical 
sete four, also a similar lateral seta. Antenne 23-or 24-jointed, 
about as long as the cephalothorax. In the male 20-jointed with the 
geniculation between segments 18 and 19. Four pairs of bi-ramose 
Swimming feet, the first pair with a one-jointed inner ramus, the 
second to fourth pairs with two-jointed inner ramus. Fifth pair of feet 
in the female simple, similar, penultimate segment produced into a 
strong hook process; fifth feet of the male uni-ramose, each three- 
jointed, dissimilar, last joint of the right foot unguiform, of the left 
expanded. 
The genus Temora was founded by Baird, to receive one of the 
Calanide found abundantly on the English coast and since identified 
in various places along the shores of the German ocean. Much con- 
fusion has existed from the first in the nomenclature of this group re- 
sulting, in the first place, from the assumption that the type of the 
genus Temora is identical with Monoculus finmarchicus of Gunner, 
falsely identified with Cyclops longicornis of Mueller, and later from 
the fact that the male of one species has been wedded by our synon- 
omy to the female of a distinct though closely allied form. 
