MARINE GAMMARIDEAN AMPHIPODA 461 



Composition: Austrosyrrhoe ?torpens J. L. Barnard, 1964a (not 

 J. L. Barnard, 1962d) (=snew species). 



Mandible of medium size, molar of medium size or slightly enlarged 

 and not dominating mandible [palp large], fuzzy; coxa 3 strongly 

 expanded distally, with midposterior or posteroventral lobe, postero- 

 dorsal margin excavate; coxa 4 much smaller than 3, comma-shaped; 

 article 6 of gnathopods trapezoidal or subovate, palms oblique, bearing 

 at least one large serrate spine; telson elongate but cleft only 20 percent 

 or less. Species: 2, Mediterranean, Caribbean, abyssal. 



Jeddo J. L. Barnard 



Jeddo J. L. Barnard, 1962d. 



Type-species: J. simplisyrrhis J. L. Barnard, 1962d (original 

 designation) . 



Mandible enlarged, molar enlarged, dominating mandible, smooth 

 or fuzzy; mandibular palp absent; coxa 3 distally expanded, with large 

 posteroventral lobe, posterodorsal margin excavate; coxa 4 much 

 smaller than 3, hemi-ovate; article 6 of gnathopods essentially linear 

 and rectangular but not strongly elongate, simple, lacking distinct 

 locking spines; telson elongate and cleft about halfway. Species: 1, 

 S. Atlantic, deep bathyal. 



Pseudotiron Chevreux 



Pseudotiron Chevreux, 1895. — Stebbing, 1906. 



Type-species: P. bouvieri Chevreux, 1895 (original designation). 



Mandible of medium size, molar of medium size, columnar and 

 triturative; coxa 3 strongly expanded distally, with quadrate postero- 

 ventral lobe, posterodorsal margin forming quadrate excavation, coxa 4 

 much smaller than 3, comma-shaped; article 6 of gnathopods a nearly 

 perfectly linear rectangle, simple and lacking spine (s); telson elongate 

 and deeply cleft. Species: 3, Indo-Atlantic, Mediterranean, bathy- 

 abyssopelagic. 



Stephobruzelia, new genus 



Type-species: Bruzelia dentata Steiphensen, 1931 (present selection) . 



Mandible enlarged, molar enlarged, dominating mandible, smooth 

 or fuzzy; coxa 3 rectangular, not distally expanded except for antero- 

 ventral cusp, posterior margin parallel with anterior and not excavate ; 

 coxa 4 as long as and as large as coxa 3, rectangular, with midposterior 

 cusp; article 6 of gnathopods trapezoidal or subovate, palms oblique, 

 bearing four large, nonserrate, distally blunt spines; telson elongate 

 and entire. Named for K. Stephensen. Species: 1, subarctic, bathyal. 



