107 



1905, p. 914), sometim es specimeus of A. Audouini occur, in 

 which the dactylus of the small chela of the feraale presents „la 

 tracé tres marquée des crêtes sétifères du doigt mobile du male." 

 The same fact is observed in the female of a species collected at 

 the above mentioned Stations, a species some specimens of which 

 present the characters of A. pareuehirus Cout., other ones those 

 of the var. Leucothea. This variety is called imitatriv, because the 

 female imitates that of A. strenuiis Dana, in which the dactylus 

 of smaller chela is also Balaeniceps-^\ia.T^QA. 



9. Alpheus Coutierei, n. sp. 



Station 96. South-east side of Pearl-bank, Sulu-archipelago. 

 Depth 15 M. 



Station 282. Lat. 8° 25'. 2 S., long. 127° 18'. 4 E. Anchorage 

 between Nusa-Besi and the N. E-pointof Timor. Depth 27 — 54 M. 



A new species of the group „Edioardsi\ 



Rostrum acute, as long as broad at its base, just exceeding Ist 

 antennular article, sharply carinate above and with the narrow, 

 prominent, linear and corapressed rostral carina running backward 

 to beyond the posterior third of carapace. Orbital region more 

 prominent than in most other species, orbital hoods rounded, 

 uuarmed. 



Abdominal pleura of the male terminating inferiorly in a sharp 

 tooth, those of the 2nd somite cordiform ; in the female, on the 

 contrary, the 2nd somite is much wider, with slightly concave, 

 lower margin, the infero-posterior angles of the Ist and 2nd 

 pleura are obtuse, those of the 3rd and 4th a little sharp, with 

 their posterior margin rounded and convex, tbe 5th and the 6th 

 nearly as in the male. 



Telson broadly grooved in the middle, 3-times as long as the 

 posterior margin is wide. 



Second antennular article almost twice as long as the visible 

 part of Ist, carpocerite hardly longer than antennular peduncle; 

 scaphocerite as long as carpocerite, its outer margin very con- 

 cave, scale much shorter than the terminal spine and reaching 



