1012 ME. L. A. BOEKADAILE ON CBrSTACEAJfS [DeC. 13, 



The mouth-parts and other limbs are shown in figs. 9b-e. 



Length of largest male 9 mm., of largest female 8 mm. 



This species is allied to A. dimorphus Ortmann, 1894, but is at 

 once separated from it by the shape of the first pair of legs and 

 the presence of the supraorbital spine. 



Eive females bearing eggs, and three males, from I'unafuti. 



Genus Alpheus Fabricius, 1778. 



16. ALPHErs STRE^-^.TUS Dana, 1852. 



Alpluus strenuus, Dana, U.S. Expl. Exped., Crust, i. p. 543, 

 pi. xxxiv. fig. 4 (1852) ; Ortmann, Zool. Jahrb. v. Syst. 3, p. 475 

 (1890) ; Coutiere, Xotes Leyd. Mus. xix. p. 199 (1897). 



The specimens in the present collection are provided with a 

 spine at the distal end of the merus of the great chela. 



From Eotuma : three males and three females. 



From Funafuti : four males and ten females. 



17. Alpheus maceochieus Eichters, 18S0. 



Aljjt7ieus macrocMms, Eichters, Beit. Meeresf. Maur., Decapoden, 

 p. 164, pi. xvii. figs. 31-33 (1380): Ortmann, Zool. Jahrb. v, 

 Syst. 3, p. 485 (1S9U). 



One specimen from Eotuma. 



18. Alphetjs paetieosteis Dana, 1852. 



AlpJieus parvirostris, Dana, U.S. Expl. Exped., Crust, i. p. 551, 

 pi. xxxY. fig. 3 (1852) ; Ortmann, Zool. Jahrb. v. Syst. 3, p. 483 

 (1890). 



One specimen from Funafuti. 



19. Alpheus coLLUiUAJiUS Stimpson, 1860. 



Alpjlieus colhimianus, Stimpson, Proc. Ac. N. Sci. Philad. 1860, 

 p. 99 : Ortmaun, Zool. Jahrb. v. Syst. 3, p. 483, pi. xxxvi. 

 fig. 15 I; m (1890). 



One specimen from Funafuti. 



20. Alpheus l^vis Eandall, 1839. 



Alpheus lavis,liandiil], Joui'n. Ac. N. Sci. Philad. viii. p. 1 41 

 (1839) ; Dana, U.S. Expl. Exped., Crust, i. p. 556, pi. xxxv. 

 fig. 8 (1852) ; Ortmann, Zool. Jahrb. v. Syst. 3, p. 487 (1890) ; 

 Whitelegge, Funafuti Atoll, Crust, p. 146 (1897). 



From Funafuti five specimens, two of them females with eggs. 



From Eotuma sixteen specimens, five of them females with eggs. 



21. Alpheus PEOifTALTS Say, 1832. 



AlpJieus frontalis, Sav, Journ. Ac. N. Sci. Philad. i. p. 245 

 (1832) ; H. M.-Edwards, H. X. Crust, ii. p. 356 (1837) ; Atlas to 

 Cuvier's E. An. pi. liii. fig. 2 (1849) ; Ortmann, Zool. Jahrb. v. 

 Syst. 3, p. 488 (1890). 



From Eotuma five specimens ; from Funafuti one. 



