416 



Stat. 115. July9/n. East side of Pajunga-island, Kwandang-bay. Reef. 15 mutilated specimens, 



probably belonging to this species. 

 Stat. 127. July 20/21. Taruna-bay, Great Sangir-island. Reef. 1 young male. 

 Stat. 162. August 18. Between Loslos and Broken-islands, West coast of Salawatti. iS m. 



Coarse and fine sand with clay and shells. 1 egg-bearing female. 

 Stat. 163. August 18 — 20. Anchorage near Seget, West entrance Selee-(Galewo)-strait. Reef. 



1 young male and 1 young female, the latter infested by a Bopyrid in the 



abdomen. 

 Stat. 176. August 30/31. Anchorage off Lilintah, South coast of Misool. Reef. 1 ova-bearing 



female. 

 Stat. 181. September 5 — II. Ambon-anchorage. Reef. 14 specimens, males and females, some 



of which with eggs, but mostly young. 

 Stat. 299. January 27/29. I0°S2'.4S., I23°i'.iE. Buka- or Cyrus-bay, South-coast of Rotti- 



island. 34 m. Mud, coral and Lithothamnion. 1 ova-bearing female. 

 Stat. 311. February 12/13. Sapeh-bay, East coast of Sumbawa. Reef. 2 specimens, one of 



which with eggs, without the legs of the i st pair. 



This species of which I have treated already several times, is considered by Professor 

 Coutière as a subspecies of A. Edwardsii Aud. (H. Coutière, 1. c. 1905), from which it should 

 differ by the subulate form of the rostrum : I don't venture to decide this difficult question, 

 but I wish to refer our specimens to A. chiragricus, to which they certainly belong. 



According to H. Milne-Edwards A. chiragricus attains a length of 3 inches. The largest 

 specimen measured by me, an ova-bearing female probably from Atjeh, had a length of 65 mm. 

 (de Man, 1. c. 1897), Dut tne largest specimens, collectecl by the "Siboga", are of a much 

 smaller size, namely an ova-bearing female long 27 mm. and a male long 2Smm., both from 

 Amboina. The rostrum projects either horizontally forward or is slightly directed upward as in 

 the male, long 28 mm. The two male and the two female specimens from the Mergui Archipelago, 

 described by me in 188S and of which I have treated in the quoted following papers, are again 

 lying before me. Of the large chela of the larger of the two females, figured by me 1. c. 189S, 

 PI. IV, fig. 1 and 1. c. 1902, PI. XXVII, fig. 62^ and 62 c', the fingers are little shorter than 

 the palm, the proportion being as 4 : 5 and in this specimen the lobe both on the upper and 

 on the lower border of the palm ends in an acute tooth ; in the other specimens, however, 

 the fingers are shorter and the lobes much less acute. In the younger male, long 23 mm., the 

 proportion between the length of the fingers and that of the palm is, indeed, as 3 : 4 and, 

 both in the larger male long 33 mm. and in the younger female long 24111111., the palm is one 

 and a half as long as the fingers; the length of the fingers appears therefore somewhat variable. 



Merus of third legs 5-times as long as broad. In the younger female from the Mergui 

 Archipelago these joints are 4,6 mm. long and 0,95 mm. broad, in a female of equal size from 

 Amboina these numbers are 4,4 mm. and 0,88 mm. ; the propodi, that measure two-thirds the 

 meri, are 6-times as long as broad, in the female from the Mergui Islands they are 3,2 mm. 

 long and 0,52 mm. broad, while in the female from Amboina these numbers are 3 mm. and 

 also 0,52 mm. 



A. chiragricus may easily be recognized by the narrow, subulate rostrum. 



General distribution: "Mers d'Asie" (H. Milne-Edwards) ; Hongkong (Coutière) ; 

 Mergui Archipelago (de Man); Atjeh, Java Sea, Bay of Batavia, West-Celebes, Amboina (de Man). 



284 



