PROCEEDINGS OF THE UNITED STATES NATIONAL MUSEUM 



by the 



SMITHSONIAN INSTITUTION 

 U. S. NATIONAL MUSEUM 



Vol. 99 Washington : 1949 No. 3251 



A NEW SPECIES OF APSEUDID CRUSTACEAN OF THE 

 GENUS SYNAPSEUDES FROM NORTHERN CALIFORNIA 

 (TANAIDACEA) 



By Robert J. Menzies 



An apparently new species of apseudid crustacean is here described 

 from specimens collected at various localities in northern California. 

 For the loan of the Monterey County specimens I am indebted to Dr. 

 Frank A. Pitelka, of the University of California ; and for the gift of 

 the San Mateo County specimens Miss Margaret Barr, graduate stu- 

 dent at the Pacific Marine Station, Marin County, Calif., deserves spe- 

 cial thanks. 



This is, to my knowledge, the second record of an intertidal marine 

 apseudid from the California coast, the first being that of Dalapseudes 

 pedispinis Boone, which was collected from Laguna Beach, Calif. 

 Specimens of Synapseudes can be easily distinguished from those of 

 Dalapseudes by their lack of pleopods. Three pairs of pleopods occur 

 in Dolapsettdes (Boone, 1923, p. 147) . 



Family APSEUDIDAE 



Genus SYNAPSEUDES Miller, 1940 



Genotype: Synapseudes minutus Miller, 1940, by original desig- 

 nation. 



Miller established Synapseudes for eye-bearing apseudid Chelifera 

 having a three-segmented pleon and a complete absence of pleopods. 

 His statement (Miller, 1940, p. 313) that "this is also the first case of 

 complete absence of pleopoda in this family" is contradicted by Wliite- 

 legge's (1901, p. 213) report of a complete absence of pleopods in some 

 specimens of Pagurapseudes spinipes Whitelegge and also by Van- 

 hoffen's (1914, p. 464) similar statement concerning Pagurapseudes 



830590—49 ^ 



