MARINE GAMMARIDEAN AMPHIPODA 411 



Palinnotus Stebbing 



Palinnotus Stebbing, 1900; 1906. 



Type-species: Pereionotus thomsoni Stebbing, 1899a (original 

 designation). 



Maxilla 1 bearing a spine-like palp; lohes oj maxilla 2 separate 

 {Pereionotus); maxillipedal palp 3-articulate; gnathopods simple; rami 

 of pleopod 3 equal; uropod 3 lacking rami. Species: 3, Japan Sea, 

 S. Africa, E. Australia, littoral. 



Pariphinotus Kunkel 



Pariphinotus Kunkel, 1910. 



Type-species: P. tuckeri Kunkel, 1910 (monotypy). 



Maxilla 1 lacking palp; maxillipedal palp 4-articulate; gnathopods 

 simple; inner ramus of pleopod 3 half as long as outer; "uropod 3 

 absent." Possibly synonymous with Heterophlias. Species: 1, Ber- 

 muda, littoral. 



Pereionotus Bate and Westwood 



Pereionotus Bate and Westwood, 1863. — Stebbing, 1906. 

 Icridium Grube, 1864a. 



Type-species: Oniscus testudo Montagu, 1808 (monotypy). See 

 Chevreux and Fage, 1925. 



Maxilla 1 lacking palp; lohes of maxilla 2 coalesced (Palinnotus) ; 

 maxillipedal palp 3-articulate; gnathopods simple; rami of pleopod 3 

 equal in length; uropod 3 apparently absent or not detected; uropod 2 

 with two rami in male, one ramus in female. Species: 1, tropical 

 E. Atlantic, Mediterranean, Red Sea, littoral. 



Phlias Guerin 



Phlias Guerin, 1836.— Stebbing, 1906. 



Type-species: P. serratus Guerin, 1836 (monotypy). 



Obscure genus resembling Pereionotus. MaxiUa 1 lacking palp; 

 maxillipedal palp 3-articulate; gnathopods simple; pleopod 3 with rami 

 equal in length; uropod 3 "biramous," but probably confused with 

 uropod 2. Guerin's dorsal figure of urosome shows a setose pair, of 

 "uropods" probably representing a pair of pleopods. Species: 1, 

 between lies Malovines* and Port Jackson, Australia, ?littoral. 



♦Falkland Islands; thus, type-locality of this species obscure. 



285-135 O - 69 - 27 



