362 U.S. NATIONAL MUSEUM BULLETIN" 271 



Scopelocheirus Bate 



Callisoma Costa, 1851a, b (homonym, Coleoptera) [type species: Callisoma hopei 



Costa, 1851a, b, selected by Boeck, 1876]. 

 Scopelocheirus Bate, 1857a. — Stebbing, 1906. — Birstein and Vinogradov, 1964. 

 Bathycallisoma Dahl, 1959 [see also this genus in alphabetical order]. 



Type-species: S. crenatus Bate, 1857a (monotypy) . See Sars, 1895. 



Epistome slightly and lobately produced in front of upper lip 

 (Aroui) ; mandibular molar conical, simple, palp attached level \vith 

 molar; inner plate of maxilla 1 densely setose on inner edge; gnathopod 

 1 simple, linear, article 7 shrouded in setae or cirri, article 6 longer 

 than 5; gnathopod 2 minutely chelate {Paracallisoma, Bathycallisoma) ; 

 telson medium to long, deeply cleft. Species: 3 or 4, probably 

 cosmopolitan, bathy-abyssopelagic. 



Shackletonia K. H. Barnard 



Shackletonia K. H. Barnard, 1931; 1932. 



Type-species: S. robusta K. H. Barnard, 1931 (original designa- 

 tion); 1932. 



Mouthparts presumed to be produced in a ventral conical bundle; 

 epistome and upper lip not differentially produced, apparently 

 coalesced; mandibular molar slightly conical, palp attached slightly 

 proximal to molar ; outer plate of maxilla 1 with hook-like spines; gnath- 

 opod 1 simple, stout; rami of uropod 3 ovate, outer mth a minute, 

 spine-like article 2; telson of medium length, deeply cleft. Species: 

 1, antarctic, deep littoral. 



Socarnella Walker 



Socarnella Walker, 1904. 



Type-species: S. 6onmen Walker, 1904 (monotypy). 



[Upper lip and epistome not described] ; mandibular molar absent, 

 palp attached proximally; gnathopod 1 simple, article 6 longer than 5; 

 outer ramus of uropod 3 uxiiarticulate ; telson short, emarginate or 

 slightly cleft; mandibular palp article 2 about 5 times as long as article 1 

 (Socarnopsis) . Related to Lysianassa [= Lysianopsis , Arugella, etc.] 

 Species: 1, Ceylon, littoral. 



Socarnes Boeck 



Socarnes Boeck, 1871. — Stebbing, 1906 (in part, not Ephippiphora White, see 

 Waldeckia herein) . 



Type-species: Lysianassa vahlii Kr0yer, 1838 (monotypy). See 

 Sars, 1895. 



