180 



MR. LUBBOCK ON SOME OCEANIC ENTOMOSTRACA 



DiAPTOMTJS, 

 DiAPTOMUS ABDOMINALIS, Lbk. 

 Collected June 7- §■ lat. 0° 40'; W. long. 0° 20'. 



„ October 7. N. lat, 7° 15' ; W. long. 27° 52'. 



C AND ACE. 

 C AND ACE ORNATA, D. 

 Collected September 15. N. lat. 47° 41'; W. long. 7° 5S. 



Oandacb pachydactyla, D. 



Collected December 15. S. lat. 0° 40 ; W. long. 0° 20'. 

 September 15. N. lat. 47° 41'; W. long. 7° 58'. 

 October 7. N. lat. 7° 15'; W. long. 27° 52'. 



PONTELLA. 



Subgenus Calcmopia, 



Calmiopia bbachiata, D. 



Subgenus Fontellma. 

 Fontellma tuegida, D. 



Collected in S. lat. 0° 40'; W. long. 0° 20'. 

 N. lat. 2° 3' ; E. long. 86° 14'. 



Fontellina perspicax, D. 

 Poiitellina Bairdii, Lbk. 



Collected March 25. S. lat. 0° 30'; W. long. 0° 30'. 

 „ April 17. S. lat. 0° 40'; W. long. 0° 6'. 



CYOLOPID^. 



Clttemnestra. 

 Clytemnestra tenuis, n. s. Cepbalothorax subacute rostratus, segmento antico lato, 

 postice utrinque dilatato, tribus segmentis sequentibus subito angustioribus, margine 

 posteriore arcuatis, et lateribus postice productis et subacutis. Abdomen 6-articula- 

 tum, segmentis subeequis, decrescentibus, postico bilabato. Antennas anticae 7-arti- 

 culatse ? segmento apicali longo. 

 The genus Clytemnestra is widely extended, being found in the Pacific and in the 

 Atlantic. At present, however, three species only are known : one was found by Dana 

 in the Pacific Ocean and in the China Sea ; and a second collected by Dr. Sutherland in 

 the Atlantic, and described by me in the ' Transactions of the Entomological Society,' n. s. 

 vol. iv. p. 25. 



Of the present species, only a single specimen was observed. It was a female, and 

 carried a single mass of eggs. The length was about -2-5-th of an inch. The general out- 

 line of the body much resembled that of C. scutellata. The anterior antennae are much 

 longer than in C. atlantica, and resemble in their general proportions those of C. scutel- 

 lata. They have also, as in that species, an appendage on the fourth segment counting 



