5 r* 1 



jyj 



(or broad), palm one and a half as long as the fingers; palm compressed, upper border 

 with a transverse groove near the dactylus, posterior to the groove the upper border 

 is flattened until to the oval area, its outer margin, however, is not ridged; outer face of the 

 palm smooth, glabrous, slightly concave on the immobile finger, inner face finely granular, like 

 the lower border, the outer margin of which is rounded. Upper and lower border of the 

 chela fringed with hair at the inner side, fingers smooth, except the inner face of the immobile 

 finger, which is finely granular. 



Merus of the small cheliped of the male 2,3-times as long as broad, of a stouter form 

 than that of A. pnöescens, for the rest agreeing with the merus of the large cheliped. Chela 

 5,3 mm. long, much short er than the carapace (6,5 mm.), of a stouter shape than that of 

 A. pubescens: the chela, indeed, is only 3-times as long as high and the fingers are a 

 little long er than the palm; palm distinctly compressed, flattened above, without a trans- 

 verse groove near the dactylus, inner face flattened, finely granular, fringed with hairs at the 

 upper and at the lower margin, outer face also somewhat granular. Fingers Ba?ae7iiceps-shaped, 

 as in A. djcddcnsis Cout. and A. pubescens\ dactylus ridged above and fringed with hair at 

 the inner side of this ridge, nearly as in these species. Carpal segments of second legs in the 

 male: 1 mm., 1,5 mm., 0,6 mm., 0,6 mm. and 0,62 mm. long, chela 0,9 mm. long (palm 0,4 mm., 

 fingers 0,5 mm.); in the female these segments measure 0,9 mm., 1,25 mm., 0,54 mm., 0,5 mm. 

 and 0,58 mm., chela 0,85 mm. (palm 0,42 mm., fingers 0,43 mm.), and, both in the male and 

 in the female, the second carpal segment is 7-times as long as thick. These numbers prove 

 that the carpus much resembles that of A. pubescens, the second segment being 7-times as 

 long as thick, in the male one and a half, in the female almost one and a half as long as 

 the first, while the three last segments are of subequal length. 



Ischium of the three posterior legs with a movable spine. Merus of 3 rd legs of a stouter 

 shape than that of A. pubescens, being only four times as long as broad, unarmed; carpus 

 unarmed, a little more than half as long as the merus, propodus 1,2-times as long as the 

 carpus, straight, slightly narrowing towards the distal extremity, 4-times as long as broad near 

 the carpal articulation ; posterior margin with 5 pairs of spinules, both margins with long setae, 

 like the anterior border of the carpus. Dactylus half as long as the propodus, one-third the 

 length of the merus, slightly curved, styliform like that of A. pubescens, not broader than 

 thick, not flattened, simple. Ova not very numerous, 0,65 mm. long, 0,5 mm. thick. 



42. Alpheus Miersi Cout. 



Alplieus rapax var. Miersi H. Coutière, in: Buil. Soc. Entom. France, 1898, p. 166. 

 Alpheus Miersi H. Coutière, Alpheidae Mald. and Laccad. Archip. 1905, p. 903, PI. LXXXIII, 



PI. LXXXIV, fig. 42. 

 Alpheus miersi J. Pearson, On the Macrura, in: Report Pearl Oyster Fisheries Ceylon, 1905, 



p. 85. 



Stat. 37. March 30/31. Sailus ketjil, Paternoster-islands. 27 m. and less. Coral and coralsand. 



1 adult egg-bearing female and 1 young specimen. 

 Stat. 66. May j S. Bank between islands of Bahuluwang and Tambolungan, South of Saleyer. 



8 m. Dead coral, Halimeda, Lithothamnion. 1 young specimen, probably a male. 



261 



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