358 U.S. NIATIONAL MUSEUM BULLETIN 271 



Perrierella Chevreux and Bouvier 



Perrierella Chevreux and Bouvier, 1892. 

 Pararistias Robertson, 1892. 



Type-species: Lysianassa audouiniana Bate, 1857a (original des- 

 ignation and subsequent synonymy). See Sars, 1895. 



Upper lip and epistome not differentially produced; mand bular 

 molar a vestigial hump, palp attached level with molar; lobes of 

 maxilla 2 slightly gaping, inner broader than outer; maxillipedal palp 

 not exceeding outer plate, 3-articulate or with vestigial fourth article, 

 inner plates vestigial; gnathopod 1 nearly simple, with poorly defined 

 palm; coxa 1 very small and largely hidden by coxa 2; telson of me- 

 dium length, entire, apically truncate. SiDCcies: 1, boreal and warm- 

 temperate E. Atlantic and Mediterranean, littoral. 



Phoxostoma K. H. Barnard 



Phoxostoma K. H. Barnard, 1925. 



Type-species: P. algoense K. H. Barnard, 1925 (monotypy). 



Mouthparts forming conical bundle; upper lip and epistome con- 

 tinuous; mandible slender, molar obsolete, palp attached quite prox- 

 imally; maxillipedal palp slightly exceeding outer plate, article 4 

 very small; gnathopod 1 simple, article 6 longer than 5; telson short, 

 deeply insinuate. Species: 1, S. Africa, littoral. 



Podoprion Chevreux 



Podoprion Chevreux, 1891. — Stebbing, 1906. 



Type-species: P. bolivari Chevreux, 1891 (monotypy). See 

 Chevreux and Fage, 1925. 



Epistome and upper lip not differentially produced; mandible lack- 

 ing molar, palp attached rather distally, ^cutting edge dentate; gnath- 

 opod 1 chelate, thumb narrow; article 2 of iKreojpod 3 deeply indentured; 

 coxa 1 shorter than coxa 2 and partially hidden by it; telson of medium 

 length, deeply cleft. See Euonyx. Species: 1, warm-temperate E. 

 Atlantic, littoral. 



Podoprionella Sars 



Podoprionella Sars, 1895. — Stebbmg, 1906. 



Type-species: P. norvegica Sars, 1895 (monotypy). 



Epistome and upper lip not differentially produced; mandible lack- 

 ing molar, palp attached rather proximally; maxillipedal palp shorter 

 than outer plate, 3-articulate; gnathopod 1 chelate; article 2 oj pere- 



