. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. Text-fig. 12. Paracahimts parvus Clans. a. f9 Genital somite in lateral view X 90. b. }-9 (Stage V). Abdomen >; 90. c. yo' (Stage V). Abdomen X 90. d. yc? pes V in anterior view X c. 400. e—f. y$—tf (Stage IV). .\bdoinen X 90- g f Q. Abnormal specimen with well developed pes V X 90. by the less prominent first abdominal .somite, and by the better developed asymmetrical fourth pair of legs (cf. Canu) (textfigs. 12 c—d). Y5—d' (St. IV). Size; (0-48 — 0-14) = 0-62 mm. This stage is
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. Text-fig. 12. Paracahimts parvus Clans. a. f9 Genital somite in lateral view X 90. b. }-9 (Stage V). Abdomen >; 90. c. yo' (Stage V). Abdomen X 90. d. yc? pes V in anterior view X c. 400. e—f. y$—tf (Stage IV). .\bdoinen X 90- g f Q. Abnormal specimen with well developed pes V X 90. by the less prominent first abdominal .somite, and by the better developed asymmetrical fourth pair of legs (cf. Canu) (textfigs. 12 c—d). Y5—d' (St. IV). Size; (0-48 — 0-14) = 0-62 mm. This stage is distinguished from the pre- ceding one by the number of abdominal .somites (3 only). As in the other stage, differences are found in the prominent fifth pair of legs in the males (cf. text-figs. I2e—f). Of the coijepodites (stages I—III) I am not sure of having any; according to Oberg these as well as the larval forms are rather difficult to distinguish from those of Pscudocalatnis cloii- gahis\ they are, however, smaller and more clums\-, and have the exopodite and the eudopodites of the antennae of almost equal length. From Ingolf St. 62 (Apst. 14) I have examined a young specimen (vSt. II) 0-6 mm. long and one (vSt. I) 0-48 nun. long, which on account of the long endopodite of the antenna perhaps ought to be referred to this species. Variation. In a single mature female? (!•'. 389 O. Exp. 1900), the size of which was (o-6S — 0-2) = 0-88 mm. the left leg of the fifth pair consisted of four segments as in the immature male, while the right consisted of two segments only. A somewhat .smaller female from the same locality had both pair of usual structure. Bay has taken 3 .specimens with the left leg- somewhat longer than the right,. 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 w
Size: 862px × 2901px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
