1 // 



The fïfth pair of feet is asymmetrical. The exopodite is composed of tvvo joints. The joints 

 of the left exopodite are distinctly longer than the joints of the right exopodite (Plate XLVIII, fig. 3). 



Length of male, 1,8 mm. 



The distal end of the right side of the second abdominal segment is produced into a 

 well defined tooth (Plate XLVIII, fig. 4). 



The inner margin of the last joint of the left exopodite of the fïfth pair of feet is furnished 

 with a pad of fine hairs. The palm-Iike margin of the first joint of the right exopodite is 

 produced into three strong blunt teeth. The claw-like second joint has three small pointed 

 teeth (Plate XLVIII, fig. 5). 



The apical portion of the second maxillipedes of both sexes is composed of five joints. 



Calanopia clliptica appears to be generally distributed in the warm regions of the Indian 

 and Pacific Oceans. It has also been found in the Red Sea. 



2. Calanopia minor A. Scott. Plate XLVIII, figs. 6 — 10. 



Calanopia minor A. Scott, 1902, p. 406, pi. I, figs. 1 — 5. 

 Calanopia minor Thompson & Scott, 1903, p. 251. 

 Calanopia minor Cleve, 1903, p. 356. 

 Calanopia minor Wolfenden, 1905 (a), p. 1023. 



This form may easily be passed over as a small variety of Calanopia elliptica. On 

 careful examination it is seen to be very distinct. This small form was not so widely distributed 

 as Calanopia elliptica, but it was rather more plentiful in the samples where it was noted. 

 Calanopia minor was found in the plankton collected at the following stations. 



Stat. 35. — Stat. 36. — Stat. 4j h . — Stat. 66. — Stat. 71. — Stat. Si.— Stat. 96 (day). — 

 Stat. 99. - - Stat. 109. — Stat. 117». — Stat. 118 (HENSEN vertical net, 900 metres to 

 surface). — Stat. 128 (HENSEN vertical net, 700 metres to surface). — Stat. 138. — Stat. 

 141 (HENSEN vertical net, 1500 metres to surface). — Stat. 142. — Stat. 143 (Hensen 

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

 surface). — Stat. 168. — Stat. 184. — Stat. 203 (Hensen vertical net, 1500 metres to 

 surface). — Stat. 205. — Stat. 213. — Stat. 217 (horizontal cylinder). — Stat. 282. — Stat. 

 304. — Stat. 315. 



The collection taken at Station 142 yielded 1850 specimens. This number was repre- 

 sented by 983 females and 867 males. 



Length of female, 1,4 mm. 



The combined len<nh of the abdomen and furca is contained one and three-fourth times 

 in the total length of the ceplialot/wrax, from the frontal margin to the base of the genital 

 segment. The second abdominal segment is distinctly longer than the genital segment. The 

 furcal joints are twice as long as broad. 



The fifth pair of feet is quite symmetrical. The exopodite is one-jointed. It terminates 

 in one long spine and one short spine. The long spine is on the inside. The distal part of 

 the outer margin is furnished with one short spine (Plate XLVIII, fig. 8). 



Length of male, 1,2 mm. 



The second abdominal segment has no spiniform process on the right side. 



i77 



SIROGA-EXPEDITIE XXIXn. 2T, 



