556 CRUSTACEA. 



At Lahaina, Island of Maui, Hawaiian Group. 



Length of body, ten lines. Beak starts from a broad space back of 

 eyes, and narrows rapidly with a curve, is nearly linear between the 

 eyes, and in front equilaterally triangular. There is an appearance 

 of an irregular crenulation, but it seems to be owing to the colour 

 alone. Second joint of inner antennas a little longer than first, nearly 

 one and a half times. Carpus of second pair of feet has the third and 

 fourth joints together about equal to second, and hand equal to fourth 

 and fifth in length. The fourth and fifth joints of the third and 

 fourth pairs are short hairy externally, and the fifth joint has about 

 six sets of spinules on inner side. In a side view of the front there 

 is a low angle to the orbit, but there is no proper tooth or spine. 



There are two specimens of this species in the collections and 

 neither has the hands. 



b. Orbitae margo dente spinulave armatus. 

 1. Spina orbitalis rosiro plane brevior. 



Alpheus l^vis, Randall. 



Rostrum acutum, spiniforme, inter oculorum oases ortum, lateribus fere 

 rectis. /Squama antennarum externarum basalts basi non brevior, bad 

 intemarum parce lowjior ; spina basalis externarum mediocris, inter- 

 narum valde elongata. Spina orbitalw perbrevis. Pedes antici paulo 

 incequi, manu majore lodvi, compressd, marginibm rotundatis, integris, 

 digitis brevibus {manu plus triplo brevioribus) ; manu minore oblongd, 

 digitis manu plus duplo brevioribus. Pedes 2di Mis parce longiores, 

 artieulo carpi \mo parce longiore quam 2dus, manus longitudinem 

 asquante. Pedes Btii parce criniti, artieulo tertio apicem inferwrem 

 non acuto, tarso lata et brevi. 



Beak acute, spiniform, arising from between the bases of the eyes, 

 sides nearly straight. Basal scale of outer antenna) not shorter 

 than base, a little longer than base of inner pair. Basal spine of 

 outer pair of moderate length, of inner much elongate. Orbital 

 spine very short. Anterior feet not very unequal, larger hand 

 smooth, compressed, margins rounded, entire, smaller oblong, fingers 



