74 



Addis on E. Verrill, 



obtuse lobe, but with no spine nor denticle. Thus the front edge 

 is sinuous. There is also a strong emargination of the edge below 

 the eyes. 



The large Colon specimen photographed (pi. 23, fig. 4) was 

 35 mm long; length of chela, 20; its breadth, 9; length of palm, 

 12.5; of dactyl, 7.5 (No. 484). Another was 38mm long; cara- 

 pace 13; chela 20; its breadth, 9; thickness, 5; length of dactyl, 

 8 mm. 



FIGURE 6. a, Synalphcus goodei; b, Alpheus arinillatus. Enlarged about 

 i*/2, from alcoholic specimens. 



Coutiere (op. cit, 1910, p. 485) states that his identification of 

 this species is based on the types of H. M. -Edwards still preserved 

 in the Paris Museum. The original description was too brief and 

 imperfect for the identification of the species. The name alludes 

 to the rings of color on the legs and antennae. 



Both of the larger chelae are notably hairy. The hairs arise 

 from pits. The largest chela is more elongated than in the pre- 

 ceding species; the length of the palm being about twice its 

 breadth; total length without the dactyl is about two and a half 



