414 



does not reach the rounded tip of the blade, for it only extends to the distal third part of 

 3 ld antennular article. In this specimen the outer margin of the scaphocerite appears very slightly 

 convex, but in the other from Stat. 4 it is straight; in the latter there is no spinule on the 

 basicerite, whereas a very small one, 0,5 mm. long, exists in the specimen from Makassar. 



The large chela agrees with the cited description and figure. In the specimen from 

 Makassar this chela is 47 mm. long, the palm 27 mm. long and 18,5 mm. high, in the female 

 from Stat. 4 these numbers are 30111111., 17,5 mm. and 1 2 mm. This chela appears therefore 

 one and a half as long as the carapace and 2,5-times as long as high. 



In both specimens the fingers of the small chela are decidedly longer than the 

 palm. In the full-grown female from Makassar the proportion between the length of the chela 

 and that of the fingers is 1,88. The height of the palm slightly decreases towards the articulation 

 of the fingers and the proportion between its length and its greatest height near the carpal 

 articulation is 2,33. In the much younger female from Bangkok described in 1898 (1. c), the 

 fingers were just as long as the palm and the palm 3-times as long as high. 



The second legs are, in the adult female from Makassar, 1,4-times as long as the 

 carapace; the carpal segments are 7,8 mm., 3,5 mm., 1,5111111., 1,5 mm. and 2,3111111. long, the 

 chela 2,8 mm, long (palm 1,35 mm., fingers 1,45 mm.). The second segment appears a little 

 longer in proportion to the fifst than in younger individuals. 



The following legs much resemble those of A. Enphrosyne (J. G. de Man, 1. c. 1897, 

 Taf. 36, fig. 6\d). Merus of 3 rd pair 5-times as long as broad and 1,36-times as long as the 

 propodus which distinctly narrows distally and which is armed with 7 spinules along its posterior 

 margin; dactylus about one-third of the propodus. 



Remarks. This species much resembles A. macrodactylus Ortm., but the rounded 

 rostral carina is longer, reaching to somewhat behind the corneae and it is also more prominent ; 

 the large chela lias a different form and the fingers of the small chela are longer in proportion 

 to the palm ; the second carpal segment appears a little longer with regard to the first and 

 the meri of the following legs are more slender. 



General distribution: Pontianak (de Man); Bangkok (de Man); Sarawak (Nobili). 



f55. Alpheus Audouini Cout. 



Alpheus Audouini H. Coutière, Alpheidae Mald. and Laccad. Archip. 1905, p. 91 1, PI. LXXXVII, 

 fig. 52. 



Stat. 131. July 24/25. Anchorage off" Beo, Karakelang-islands. Reef. 7 specimens, 6 of which 

 are much injured and have lost the first pair of legs. 



Stat. 174. August 28 — 29. Waru-bay, North coast of Ceram. Reef. 1 young specimen, without 

 the large cheliped, probably belonging to this species. 



Stat. 181. September 5/1 1. Ambon-anchorage. Reef. 5 specimens, 3 of which with eggs. 



Stat. 213. September 26 — October 26. Saleyer-anchorage and surroundings. Reef. 1 egg- 

 bearing female. 



In his important work on the Alpheidae of the Maldive and Laccadive Archipelagoes 

 Coutière regards as different species A. Edwardsii Aud., A. chiragricus H. M.-Edw. and he 

 describes as new A. Audouini Cout.; A. chiragricus should differ from the two others by the 



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