NO. 2285. ANEW COPEPODA FROM HONDURAS— MARSH. 547 



The longest of the terminal setae equals in length the whole abdomen, 

 including the furcae. 



The first antennae are short, composed of twelve segments, which 

 have no distinctive armature. The antenna is shown in figure 4. 



The rami of the swimming feet are 2-segmented. The spinous 

 armature of the terminal segments of the exopodites is represented 

 by the formula 3, 3, 4, 3. Figure 3 shows a fourth foot. 



The fifth feet are 1-segmented. The segment is slender, nearly 

 five times as long as its greatest width. A little more than midway 

 of its length on the inner side there is a minute lateral spine, and the 

 distal portion of the segment is somewhat narrower than the proxi- 

 mal part. The segment is terminated by a long seta. The foot is 

 shown in figure 2. 



G. ceibaensis resembles very closely C. varicans. In its general 

 form, the form and armature of the furca, and the character of the 

 first antenna, it can not be distinguished from that species. The 

 spinous armature of the expodites of the swimming feet is different, 

 however. The principal distinction is the form of the fifth feet. The 

 segment in varicans has no armature except the terminal seta, while 

 in ceibaensis there is a minute lateral spine. 



The material available did not permit of a determination of the 

 form of the receptaculum seminis. 



CYCLOPS PANAMENSIS Marsh. 



Cyclops panamensis was found in collections made in March and 

 in August. The only preceding record of this species was by Marsh, 

 1913, who found it on the savannas between Panama and Old Panama. 

 The occurrence in Honduras would indicate a probable fairly wide 

 distribution in Central America. 



REFERENCES. 



JUDAY, ChANCEY. 



1914. A new species of Diaptomus. Trans. Wis. Acad. Sci. Arts, and Letters, 

 vol. 17, pt. 2, pp. 803-805, fiss. 1 and 2. 



MABSn, C. DWIGHT. 



1913. Report on fresh-water Copepoda from Panama, with descriptions of 

 new species. Smithsonian Miscellaneous Collections, vol. 61, No. 3, pp. 

 1-30, pis. 1 to 5. 



Peabse, a. S. 



1915. An account of the Crustacea collected by the Walker expedition to 

 Santa Marta, Colombia. Proc. U. S. Nat. Mus., vol. 49, pp. 531 to 556, 

 pis. 70 to 73. 



Thi^bauu, M. 



1914. Cop^podes de Colombie et des Cordill&res de Mendoza. Voyage d'ex- 

 ploration scientifique en Columbie. M^m. Soc. Neuchfiteloise Sci. Nat. 

 vol, 5, pt. 2, pp. 160-175, 25 figs. 



