4 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 122 



with 5 (rarely 6) main claws of which only claw no. 1 is united with 

 lamella. Sixth limb with only 1 endite. Male mandible with exopo- 

 dite. Endopodite of 2nd antenna of male Avith 1 or, more usually, 

 3 joints. Inner margin of "clasper" of male copulatory limb either 

 smooth or serrated. Shell of adult male with rostrum and shallow 

 sinus; shell of female generally without rostrum or sinus. 



Sarsiella zostericola Cushman, 1906 



Figures 1-15; Plates 1, 2 



Sarsiella zostericola Cushman, 1906, pp. 364-366, pi. 28 (figs. 7-18). — Blake, 1933, 

 p. 230 [listed].— Kornicker and Wise, 1962, p. 61, figs. 2 A-G, 4 A-C. 



Sarsiella americana Cushman, 1906, pp. 363, 364, pi. 27 (figs. 1-6). 



Sarsiella tricostata Jones, 1958a, pp. 48-52, figs. 1, 2; 1958b, figs. 1-3; 1961, 

 pp. 261, 262, figs. 20, 28, table 19 [listed]. 



Eusarsiella zostericola Cushman-Poulsen, 1965, p. 83 [in key]. 



Eusarsiella americana Cushman-Poulsen, 1965, p. 83 [in key]. 



Lectotype: USNM 113357, male whole specimen preserved dry. 

 Cushman (1906) did not designate a holotype; however, one slide in 

 his collection is marked "type." The specimen on this slide is herein 

 designated lectotype. 



Paralecto types: USNM 113358, 1 male and 2 juveniles, whole 

 specimens preserved dry. These specimens are in a slide in the 

 Cushman Collection marked "co-types." These specimens are 

 designated paralectotypes herein. 



Sarsiella zostericola was established by Cushman (1906, p. 364) to 

 receive numerous specimens collected from the "Gulf of Canso," a 

 channel near Woods Hole, Mass. In the same paper, Cushman based 

 a second species, *S'. americana, on a single specimen collected in 

 the western part of Vineyard Sound, Mass. Blake (1933) extended 

 the range of S. zostericola to the Mount Desert region of Maine, but 

 neither illustrated nor described the specimens. Jones (1958a) 

 collected from San Francisco Bay, Calif., ostracods that closely 

 resembled S. zostericola but differed sufficiently from the description 

 of (S. zostericola to warrant his establishing the new species 5^. 

 tricostata. Kornicker and Wise (1962) extended the range of S. 

 zostericola to southwest Texas, where the species was collected in bays 

 and lagoons along the coast bordering the Gulf of Mexico. After 

 examining the carapace of the specinien of S. americana described by 

 Cushman (1906), Kornicker and Wise (1962) reported it identical to 

 that of S. zostericola, and concluded that apparent differences are due 

 to the carapace of S. americana having been distorted after death of 

 the animal. They also concluded that "differences in appendages 



