. Bulletin de l'Institut océanographique. Ocean. _ 29 - tip scarcely acute. Lobe from first antennular joint is a small, oblong-triangular, acuminate and very acute'pro- cess ; second and third antennular joints more slender and a little longer than in E. lucens ; second joint distinctly longer than the third. Terminal process of the copulatory organs (Fig. 10) moderately short,a little thicker than in two other species, a little expanded towards the end, with the outer ramus only a short tooth and the inner very much. Fig. io. Euphausia pacifica n. sp. A. Inner and median lobe of left copulat
. Bulletin de l'Institut océanographique. Ocean. _ 29 - tip scarcely acute. Lobe from first antennular joint is a small, oblong-triangular, acuminate and very acute'pro- cess ; second and third antennular joints more slender and a little longer than in E. lucens ; second joint distinctly longer than the third. Terminal process of the copulatory organs (Fig. 10) moderately short,a little thicker than in two other species, a little expanded towards the end, with the outer ramus only a short tooth and the inner very much. Fig. io. Euphausia pacifica n. sp. A. Inner and median lobe of left copulatory organ, from behind, p'2. terminal process; p3. proximal process; p''. lateral process. B. Inner lobe, from the inner side. longer but bent much forwards. The proximal process somewhat longer than the terminal,without any secon- dary branch beyond the middle, while the distal part is somewhat expanded, forming a plate which is much lon- ger than broad, with the terminal margin rounded and only very feebly emarginate somewhat from the broadly rounded end. Lateral process without tooth on the distal part. — Length of one of the largest specimens 22mm. This species is distributed in the temperate and boreal North Pacific ; it is very common at Japan. The specimens referred in 1894 by Ortmann to E. splendens Dana belong certainly to E. pacifica. (210). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Institut océanographique. Monaco : L'Institut
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectocean, bookyear1907
