33i 



the o uter margin is unarmed but Lts distal extremity is rather sharp. The chela, 8,6 mm. long, 

 closely resembles the figure 277 in Coutière's work: Les Alpheidae, 1899, p. 228. The 

 propodi of the 3 rd and 4 lh legs are armed with 10 spinules. 



The egg-bearing female from Stat. 209 is 16,5 mm. long. 



General distribution: Tahiti (Stimpson, Heller) ; Marquesas Islands (Ortmann) ; 

 Samoa Islands (Ortmann) ; Hawaüan Islands (Coutière) ; New Caledonia (Coutière) ; Ternate 

 (de Man); Amboina (de Man); Bay of Batavia (de Man); Ceylon (Miers); Maledive Islands 

 (Coutière); Mahé (Coutière); Djibouti (Coutière); Dar-es-Salaam (Ortmann). 



f 34. A/pheus tetmicarpus de Man. 



J. G. DE Man, in : Notes from the Leyden Museum, Vol. XXX, 1908, p. 104. 



Stat. 114. July 8. o°58'.5 N., I22°55'E. Kwandang-bay-entrance. 75 m. Hard sand, very fine. 



4 specimens, 1 of which is a male and 2 of which are egg-bearing. 

 Stat. 311. February 12/13. Sapeh-bay, East coast of Sumbawa. Depth up to 36 m. Mud and 



sand. 1 egg-bearing female. 



A species of s m a 1 1 s i z e , appertaining to the Insignis subgroup or perhaps to the 

 Brevirostris group and related to A. paralphcopsidcs Cout., a species that inhabits the Laccadive 

 Archipelago. The male attains a length of 13 mm., while the female becomes 13,5 mm. long. 



Frontal margin as in A. paralphcopsidcs. Rostrum pointed, acute, one-third longer than 

 broad at its base and separated from the orbital hoods by a deep emargination, the 

 lateral or outer margin of which makes a distinct angle with the anterior border of the orbits ; 

 the rostrum almost reaches to the middle of the visible part of i st antennular article. Rostral 

 carina sharp, little prominent, not reaching farther backward than the base of the orbits. Corneae 

 rather large. Telson narrow, a little more than twice as long as broad anteriorly and 4-times 

 as long as its posterior margin is broad ; the two pairs of spinules are rather large and placed 

 close to the lateral margins, anterior pair a little nearer to the base than to the posterior 

 margin, posterior pair midway between the latter and the anterior pair; posterior margin 

 arcuate, inner subterminal spines little more than half as long as this margin is broad. 



Second antennular article twice as long as thick, as long as the visible part of 

 the 1 st and one and a half as long as the 3 rd ; stylocerite terminating in a pointed spine that 

 almost reaches to the end of i st antennular article. 



Lower spine of the basicerite small, hardly reaching as far forward as the rostrum ; 

 carpocerite extending beyond the tip of the antennular peduncle by the length of 3 rd article ; 

 scaphocerite 3-times as long as broad, its outer margin very slightly concave, the apex of the 

 blade reaching to the end of the antennular peduncle, while the terminal spine that extends 

 but little beyond the blade, reaches almost to the tip of the carpocerite. 



Outer margin of the antepenultimate joint of external maxillipeds ending in a spiniform 

 tooth; penultimate joint quadrate, as long as broad; terminal joint 3-times as long as the 

 penultimate and 3-times as long as broad at its base, narrowing tovvards the distal extremity, 



that bears some setae twice as long as the joint itself. 



249 



SIBOGA-EXPEDITIE XXXIX a'. 49 



