122 



Station 273. Anchorage off Pulu Jedan, East coast of Aru- 

 islands. (Pearl-banks). Depth 13 M. 



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

 tween Nusa Besi and the N. E. point of Tiraor. Depth 27 — 54 M. 

 Station 315. Anchorage East of Sailus Besar, Paternoster- 

 islands. Depth up to 36 M. 



Professor Coutière of Paris kindly enabled me to exaniine the 

 two specimens from Reef Naifaro, Maklives, that were referred 

 by him (in : Alpheidae Mald. and Laccad. Archip. 1905, p. 872, 

 PI. VII, fig. 6) to Syn. fossor Paulson, a semi-adult male long 

 12 m.m., and an adult female long 19 m.m. 



In these specimens that I propose to consider as the typical 

 form of Syn. fossor, the meropodite of 3rd legs is, in the male, 

 2,875-times, in the female 3-times longer than wide, the pro- 

 podite, armed with five spinules besides those at the distal ex- 

 tremity, in the male 4,6-tiraes, in the female 4,43-times longer 

 than wide. In both specimens the meropodite of 4th legs is 3-times 

 longer than wide, the propodite in the male with four, in the 

 female with five spinules, in the former 4,55-times, in the female 

 4,2-times longer than wide. 



The var. propinqua now differs by the propodite of 3rd legs 

 hearing eight or nine, that of 4th legs six or seven spinules and 

 also by the more slender shape of these members. The meropodite 

 of 3rd legs is uamely 3,38—3,61, that of 4th legs 3,55—3,81 

 times longer than wide, while these numbers are for the pro- 

 podite of 3rd legs 4,9 — 5,25, and for that of the 4th 5 — 5,1. 



Smaller chela usually more slender than in the typical form. 



Ova long 1 — 1,1 m.m. 



Length of ova-bearing females 17 — 20 m.m. 



25. Synalpheus paraneomeris, Cout., var. halmaherensis, n. 



Station 152. Wunoh-bay, N. W. Coast of Waigeu-island. 

 Rostrum as in the typical form, but almost as long as Ist 

 anteuuular article, lateral spines as in the var. prolatus Cout., 

 but with the inner margins concave and a little shorter than the 



