^47 



Corycacus danae Giesbrecht, 1895, p. 261. 

 Corycaeus danae I. C. Thompson, 1900, p. 291. 

 Corycaeus danae Cleve, 1901, p. 6. 

 Corycaeus danae A. Scott, 1902, p. 420. 

 Corycaeus danae Thompson & Scott, 1903, p. 285. 

 Corycaeus danae Cleve, 1903, p. 360. 

 Corycaeus danae Cleve, 1904, p. 188. 

 Corycaeus danae Wolfenden, 1905 (a), p. 1026. 



This Corycaeus proved to be moderately common in the area investigated by the 

 'Siboga'. It was present in the plankton collected at the following thirty-two stations. 



Stat. 16. — Stat. 36. — Stat. 47''. — Stat. 66. — Stat. 71. — Stat. 75 (Hensen vertical 

 net, 11 metres to surface). — Stat. 81. — Stat. 96 (day). Stat. 96 (night). — Stat. 98. - 

 Stat. 99. — Stat. 118 (HENSEN vertical net, 900 metres to surface). — Stat. 128 (HENSEN 

 vertical net, 700 metres to surface). — Stat. 138. — Stat. 142. — Stat. 143 (HENSEN ver- 

 tical net, 1000 metres to surface). — Stat. 146. — Stat. 148 (HENSEN vertical net, 1000 

 metres to surface). — Stat. 165. — Stat. 189". — Stat. 203 (HENSEN vertical net, 1500 

 metres to surface). — Stat. 204. — Stat. 213. — Stat. 215'. — Stat. 217 (horizontal 

 cylinder). — Stat. 220 (HENSEN vertical net, 200 metres to surface). — Stat. 225. — Stat. 

 230 (HENSEN vertical net, 2000 metres to surface). — Stat. 243 (HENSEN vertical net, 1000 

 metres to surface). — Stat. 276 (HENSEN vertical net, 750 metres to surface). — Stat. 304. — 

 Stat. 315. 



The abdomen of the female of this species is composed of two segments. The genital 

 segment is narrowly ovate in outline. The furcal joints are two and a half times the length 

 of the anal segment. 



Corycaeus danae has been recorded from the Indian and Pacific Oceans. 



5. Corycaeus elongatns Claus. 



Corycaeus elongatns Claus, 1863, p. 157, pi. XXIV, figs. 3 & 4. 

 Corycaeus elongatns Giesbrecht, 1893, p. 659, pis. 49 & 51. 

 Corycaeus elongatns I. C. Thompson, 1900, p. 292. 

 Corycaeus elongatns Wheeler, 1900, p. 192, fig. 29. 

 Corycaeus elongatns Thompson & Scott, 1903, p. 285. 

 Corycaeus elongatns Cleve, 1903, p. 360. 



One specimen was found in the plankton collected at the following four stations. 



Stat. 50. — Stat. 118 (HENSEN vertical net, 900 metres to surface). — Stat [85 HENSEN 

 vertical net, 1536 metres to surface). — Stat. 271. 



The abdomen of the female of this Corycaeus is composed of one segment. The 

 segment is much contracted in front, considerably inflated in the middle, and then slopes 

 evenly to the rather narrow distal end. The furcal joints are moderately long and slender, and 

 are equal to fully half the length of the abdomen. 



Corycaeus elongatns has been recorded from the Atlantic, Indian and Pacific Oceans, 

 and from the Mediterranean. 



6. Corycaeus Jïaccus Giesbrecht. 



Corycaeus flaccus Giesbrecht, 1891, p. 480. 

 Corycaeus flaccus Giesbrecht, 1S93, p. 659, pi. 51. 



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