. Bulletin de l'Institut océanographique. Ocean. - 3i - E. similis G. O. S. var. armata n. var. ought to be named here, and 2 new species are added : E. distingueiida n. sp. and E. lamelliger a n. sp. The «Siboga» report contains a detailed account of E. paragibba H. J. H., E. hemigibba H. J. H., E. pseudo- gibba Ortm. and E. Sibogœ H. J. H.; Stebb. and E. similis G. O. S. var. armata are dealt with in the preceding group ; the five remaining species must be men- tioned or described. E. gibba G. O. S. — This species which has been on the whole well described by Sars, is closely si
. Bulletin de l'Institut océanographique. Ocean. - 3i - E. similis G. O. S. var. armata n. var. ought to be named here, and 2 new species are added : E. distingueiida n. sp. and E. lamelliger a n. sp. The «Siboga» report contains a detailed account of E. paragibba H. J. H., E. hemigibba H. J. H., E. pseudo- gibba Ortm. and E. Sibogœ H. J. H.; Stebb. and E. similis G. O. S. var. armata are dealt with in the preceding group ; the five remaining species must be men- tioned or described. E. gibba G. O. S. — This species which has been on the whole well described by Sars, is closely similar to E. paragibba H. J. H. The female of E. gibba differs from that of E. paragibba by having the keel on third antennu- lar joint a little higher and less rounded, by being smaller, and, judging from the colour of specimens preserved in alcool, by the colour in living specimens. But the male copulatory organs (Fig. 11) differ strongly in several features from those in all other species of the genus. The termi- nal process in unusually small, subcorneal, thick at the base and with the distal part slender, acute and suddenly bent forwards and outwards ; the heel in very slender. The proximal process is extre- mely long and very strong, thi- ckened at the base and then taper- ing to the acute end ; somewhat before the middle it is bent conspi- cuously inwards, and somewhat beyond the middle more outwards and besides forwards, its distal third being almost straight. The lateral process without any tooth beyond the middle. From the outer angle of the distal rounded, rather broad end of the median lobe originates a curious, very slender, (210). Fig. 11. Euphausia gibba Inner and median lobe of left copulatory or- gan, from behind, p2. ter- minal process; p3. proxi- mal process ; p4. lateral process; /. thin-skinned ringer from the end of the • median Please note that these images are extracted from scanned page images that may have been digitally enhanced f
Size: 1366px × 1829px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectocean, bookyear1907
