130 COPEPOIU. 



The body was moderately robust ; the lateral expansions of 

 the last segment of the nietasome large and terminating in a 

 pointed apex ; the genital segment of the abdomen was also 

 produced laterally into angular processes, and the caudal 

 segments, though moderately stout, were scarcely equal to 

 twice the combined lengths of last two abdominal segments. 



EURYTEMORA AFFiNis, var. HIRUNDOIDES, Nordqvist. 



1888. Temorella nffinis, var. hirundoides, Nbrdqyist, " Die Calaniden 

 Finlands," Bidrag till Kiinn. om Fiulands Natur och Folk, 

 vol. xlvii. p. 48, pi. iv. figs. 5-11, pi. v. fig. 5, pi. vi. fig. 3. 



190:2. Eurytemora hirundoides, G. O. Sars, p. 102, pi. Ixix. 



A few specimens were obtained amongst weeds, at Fowey, 

 Cornwall, May 9th, 1903. One of the specimens an adult 

 female measured scarcely 1'2 mm. in length. The body was 

 less robust than in the last form ; the genital segment of the 

 abdomen was only slightly produced laterally, and the furcal 

 joints were longer and more slender than those of E. affinis. 



Fain. 7. D i A r T o M I D &. 



DIAPTOMUS CASTOR (J urine). 



1820. Monoculus castor, Jurine, Hist, des Monocles, p. 50, pis. iv., 



v., vi. 



18oO. Diaptomw castor, Baird, p. 219, pi. xxvi. figs. 1, 2, 2 a-j. 

 1891. Diaptomus cantor, Brady, 1. c. p. 27, pi. xi. figs. 1-6. 

 1896. Diaptomus castor, Schmeil, iii. p. 35, pi. i. and pi. iv, figs. 8, 9. 

 1902. Diaptomus castor, G. O. Sars, p. 85, pis. Ivii , Iviii. 



Found very sparingly at Tresco, Scilly Islands, May 

 1903; and in a pond at St. Ives, Cornwall, in July 1901. 

 Common in a pond near the Lizard in September 1905, 

 collected by Mr. R. Vallentin. 



DIAPTOMUS GRACILIS, G. 0. Sars. 



1862. Diaptomus gracilis, G. 0. Sars, Vid.-Selsk. Fork. Christ, p. 9. 

 1803. Diaptomus Westwoodi, Lubbock, " New and little-known 



Freshwater Entomostraca," Trans. Linn. Soc. vol. xxiv. p. 203, 



pi. xxi. figs. 1-6. 



1891. Diaptomus yracilis, G. S. Brady, 1. c. p. 29 (parti/n). 

 1896. Diaptomus gracilis, Schmeil, p. 67, pi. iii. figs. 7-16. 

 1902. Diaptomus gracilis, G. 0. Sars, p. 92, pi. Ixiii. 



Ponds at Bovey Tracy and at Kingsteignton, Canal at 

 Newton Abbot, lake in Stover Park near Newton Abbot, and 

 one or two other places in Devon, in June 1904. 



