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of the second pair of feet, projects slightly beyond the base of the first outer-edge spine on 
the third joint. The second outer-edge spine on the third joint, extends to the base of the 
third outer-edge spine. The appendicular seta on the furcal joints is longer than the others. 
Keneth 275 maim. 
This species appears to have a very limited distribution. 
5. Euchaeta marina (Prestandrea). Plate XIX, figs. 9—20. 
Cyclops marinus Prestandrea, 1833, p. 12. 
Luchaeta prestandrea Philippi, 1843, p. 58, pl. 4. 
Euchaeta marina Giesbrecht, 1893, p. 246, pls. I, 15, 16, 37. 
Euchaeta marina Giesbrecht & Schmeil, 1898, p. 38. 
Euchaeta marina 1. C. Thompson, 1900, p. 278. 
Euchaeta marina Cleve, 1901, p. 7. 
Euchaeta marina A. Scott, 1902, p. 403. 
Euchaeta marina \. C. Thompson, 1903, p. 18. 
Luchaeta marina Thompson & Scott, 1903, p. 244. 
Euchaeta marina Cleve, 1903, p. 363. 
Luchaeta marina Cleve, 1904, p. 190. 
Luchaeta marina Sars, 1905 (a), p. 4. 
Euchaeta marina Wolfenden, 1905(a), p. 1007, pl. C, figs. 19 & 20 (male). 
Euchaeta indica Wolfenden, 1905 (a), p. 1008, pl. C, figs. 12—16 (female). 
Euchaeta marina Pearson, 1906, p. 16. 
Euchaeta marina van Breemen, 1908, p. 50, fig. 55. 
This species proved to be very common and was widely distributed in the area, as shewn 
by the following records. 
Stat: 16. —— Stat. 19. — Stat. 35. — Stat. 36..— Stat. 37. — Stat. 33. — Stat. 4o. — 
Stat. 47°. — Stat. 50. — Stat. 66. — Stat. 71. — Stat. 81. — Stat. 89. — Stat. 93. — 
Stat. 96 (day). — Stat. 96 (night). — Stat. 98. — Stat. 99. — Stat. 106. — Stat. 109. — 
State 11O),——, Stat, 111. — Stat.-112. — Stat. 117%, — Stat. 118) —= Stat. 121, — 
Stat. 124. — Stat. 125 (day). — Stat. 128. — Stat. 129. — Stat. 133. — Stat. 136. — 
Sintw ome e StataarAt ——9 | Stata i422.) “State 143.) | State 144. 7——) (‘Stats 143.5 == 
Sidew4{OQu— States 740-9 Stat. 165s —= 9 Stat. 1é4.-— Stat. 185, ——= Stat. 189%. —— 
Stats. 194—7. — Stat. 203 (surface). — Stat. 203 (1500 metres). — Stat. 204. — Stat. 205. — 
Stat. 210%. — Stat. 213. — Stat. 21s*, — Stat. 217 (surface). — Stat. 217 (horizontal 
cylinder). — Stat. 220 (vertical net). — Stat. 220 (surface). — Stat. 223. — Stat. 225. — 
Stat22ou Stata 230.) — —Stat..242) —- Stat. 245. —. = Stat. 252. -—— Stat. 276. — 
Stat. 282. — Stat. 304. — Stat. 315. 
The last thoracic segment of the female appears asymmetrical when viewed from above. 
The right side is distinctly more produced than the left. The genital segment is also asym- 
metrical. The right side is irregular in outline and is dilated near the distal end. The projecting 
part of the second joint of the left exopodite of the male fifth pair is coarsely toothed, and is 
easily distinguished from Luchaeta concinna. 
The female form described and figured by Wo LFenDEN. as Exchaeta indica, is identical 
with the female of Huchaeta marina. 
Euchaeta marina appears to be generally distributed in the warm seas. 
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