2 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 122 



Abbreviations used in the figures are as follows: ant. = antenna, 

 1st or 2nd as indicated; bas.=basale; cox.=coxale; e. = edges of valve; 

 end. = endite; exop. = exopodite; i. m.= inner margin of inner lamella; 

 1. p. = lamellar prolongation of selvage; Mn.=mandible; Mx.= 

 maxilla; s. = sensory bristle; 5th = 5thlimb; 6th = 6thlimb; numerals = 

 number of each joint in limb; small letter = specific type bristle. 



I wish to thank Mr. J. S. Nagle for specimens of S. zostericola 

 from Hadley Harbor, Mass., Dr. M. L. Jones for specimens of S. 

 tricostata from San Francisco Bay, Calif., Dr. John Day and Miss 

 Mary E. Potts of the Duke University Marine Laboratory for speci- 

 mens of S. disparalis from the Atlantic Shelf off North Carolina, 

 Dr. J. P. Harding and Miss P. D. Lofthouse for assistance in obtain- 

 ing for examination specimens in the Norman Collection at the 

 British Museum (Natural History), and Dr. Harbans S. Puri for 

 assistance in obtaining for examination specimens collected by 

 G. W. Miiller in the Gulf of Naples, which were on loan to Dr. Puri 

 from the Zoological Museum of Greifswald. I also wish to thank 

 Mrs. June M. Gilby for making camera lucida drawings of appendages 

 of S. capsula from specimens at the British Museum and Dr. F. M. 

 Swain, who made the arrangements. I also wish to thank Mrs. 

 Carolyne Bartlett Gast and Mr. Leon Connelly for final preparation 

 of plates and figures 9-19, and of figures 3-8, respectively. Criti- 

 cisms of all or parts of the manuscript by Drs. T. E. Bowman, H. H. 

 Hobbs, Rosalie F. Maddocks, E.. B. Manning, and I. G. Sohn are 

 deeply appreciated. Finally I wish to thank Dr. Robert V. Kesling 

 for the opportunity to examine the holotype (UMMP 48819) and a 

 paratype (UMMP 48818) of S. duparalis Darby. 



Family Sarsiellidae Brady and Norman, 1896 



When Poulsen (1965, p. 44) revised the family SarsieUidae, he 

 recognized the following genera: Sarsiella Norman, 1869; Chelicopia 

 Kornicker, 1959; Eusarsiella Poulsen, 1965; Scottiella Poulsen, 1965; 

 Muelleriella Poulsen, 1965; Parasarsiella Poulsen, 1965. 



He also (1965, p. 74) included the follo\\4ng species in Sarsiella: 

 S. capsula Norman, 1869; S. rugosa Poulsen, 1965; S. carinata Scott, 

 1905, sensu Kornicker, 1959 (male only). 



In his "Key to Genera of Sarsiella," Poulsen (1965, p. 55) separated 

 Sarsiella from Scottiella, Muelleriella, Chelicopia, and Parasarsiella on 

 the basis of characters common to both sexes, but he separated 

 Sarsiella from Eusarsiella on the basis of a male character: 



Endopodite of male 2nd antenna an unjointed bulge Sarsiella 



Endopodite of male 2nd antenna 3-jointed, prehensile Eusarsiella 



Among the species included in Sarsiella sensu Poulsen, the female 

 is known onl}'- for S. capsula Norman. The lengths of claws and 



