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U.S. NATIONAL MUSEUM BULLETIN 271 



Bircenna Chilton 



Bircenna Chilton, 1884.— Stebbing, 1906. 



Type-species: B. fulvus Chilton, 1884 (monotypy). See Sheard, 

 1936a; Nicholls, 1939. 



Maxilla 1 lacking palp; pleonites 5-6 coalesced; iiropod 3 with a 

 single vestigial ramus or none; pereonite 1 with a ventral flange. 

 Species: 4, S. Australia and New Zealand, littoral. 



Figure 88. — ^Eophliantldae: Maxilla 1: a, Wandelia crassipes Chevreux (1906c); b, Am- 

 phitholina cuniculus (Stebbing) (Chevreux and Fage, 1925); c, Eophliantis tindalei Nicholls 

 (1939). Maxilliped: d, Wandelia. Gnathopod 1: e, JVandelia; /, Aviphitholina; g, 

 Biancolina algicola Delia Valle (1893). Gnathopod 2: h, Wandelia; i, Amphitholina; 

 j, Biancolina algicola. Pleopod: k, Cylindryllioides mawsoni Nicholls (1938). Uropod 3: 

 /, Biancolina australis Nicholls (1939); m, Eophliantis; n, Bircenna nichollsi Sheard 

 (Nicholls, 1939). Telson, uropod 3 and dorsum of urosome: o, Amphitholina; p, Wan- 

 delia; q, Biancolina algicola. Urosome, lateral: r, Eophliantis. 



