236 



Stat. 282. January 15/17. 8°25'.2S., 127° 18'. 4 E. Anchorage between Nusa Besi and the N.E.- 

 point of Timor. 27 — 54 m. Sand, coral and Lithothamnion. 2 egg-bearing females; 

 in one of them a parasite occurs on the lower side of the abdomen. 



Stat. 2S5. January 18. 8° 39.1 S., I27°4'.4E. Anchorage South coast of Timor. 34 m. Litho- 

 thamnion. 3 specimens, one of which with eggs. 



Stat. 305. February 8. Mid-channel in Solor-strait off Kampong Menanga. 113 m. Bottom 

 stony. 5 specimens, 2 of which with eggs. 



Stat. 310. February 12. 8°3o'S., ii9°7'.5E. ji m. Sapeh Strait. Sand with few pieces of 

 dead coral. 7 specimens, 5 of which with eggs. 



Synalpheiis locasta, a new form of the Neonieris group, is most closely related to Syn. 

 Pococki Cout., a species inhabiting the eastern parts of the Indian Archipelago, and is especially 

 remarkable because of the great variability, presented by all its characters. 



The frontal spines are obliquely directed downward, their tips not curved upward ; the 

 rostrum, 2,5-times as long as wide at its base, reaches to the distal third of the visible part 

 of first antennular article and, as in Syn. Pococki^ Syn. streptodactyliLs and other species, is 

 separated from the lateral spines by the obliquely descending, anterior wall of the carapace; 

 lateral spines with sharply pointed tips, a little shorter than the rostrum, longer than broad, 

 distinctly turned inward and with their outer margin slightly concave at the base. 



Second antennular article naif as long as the visible part of the first, as long or hardly 

 longer than the third, second article almost as broad as long; stylocerite reaching to the 

 2°^ third or to the middle of second article. 



Lower spine of the basicerite almost as long as first antennular article, upper spine 

 half as long as the lower. Carpocerite 3,66-times as long as wide and surpassing the antennular 

 peduncle by one-half or two-thirds the length of the distal article ; outer margin of scaphocerite 

 slightly concave, lateral spine straight, almost as long as the carpocerite or as long or hardly 

 longer than the antennular peduncle and surpassing by one-fourth of its length the scale which 

 is 5-times as long as wide. 



Sometimes, as in the female N" 4 (Table A) from Stat. 164, the rostrum is much 

 shorter, considerably shorter than the lateral spines and not yet reaching the middle of the visible 

 part of first antennular article, in other specimens from the same Station it hardly reaches 

 beyond the middle of this visible part and projects horizontally forward, while the lateral spines 

 are slightly directed downward; in other specimens the lateral spines are hardly shorter than 

 the rostrum and directed straight forward or slightly outward, whereas the stylocerite hardly 

 surpasses the first antennular article, in other ones the lower spine of the basicerite is shorter, 

 hardly projecting beyond the supraorbital spines. All these differences are regarded as being 

 individual. As is shown by Table A, the measurements of the telson are much variable. So 

 e. g. in the female from Stat. 285 the length of the telson equals 2,47-times, in that from 

 Stat. 273 3, 1 -times its posterior margin, but the Table proves that all possible, intermediate 

 proportions are also observed. The outer angles of the posterior margin are spiniform, half as 

 long as the contiguous short spinules; the posterior margin is rather prominent in the middle, 

 almost semicircular. Spinules of upper surface 0,13 — 0,17 mm. long, sometimes, as in the female 

 N° 2 from .Stat. 116, 0,11 mm.; the anterior pair of these spinules that are situated not far 

 from the lateral margins, are inserted more or less before the middle, as in Syn. Pococki, 



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