. The Danish Ingolf-Expedition. Scientific expeditions; Arctic Ocean. COPEPODA 49 1905. Eucalanus elongatus Dana. Esterly, p. 131 â132, figs. 190S. Eucalanus elongatus Dana. v. Bremen, p. 15, fig. 10. 6 a âd. 1908. â â â Farran, p. 21. 1905. 1905- 1906. 1906. Th. Scott, p. 222. Farran, p. 30. Pearson, pp. 6â7. G. O. Sars, p. 2. 1908, 1910. 1911. â Wolfendeu, p. 29. â Farran, pp. 93â94, â Wolfenden, p. 204. Description, f?. Size: 6-5 mm. The females scarcely differ from Giesbrecht's description. No glandular pores were observed in the natatory limbs. The labrnm proper, which is suddenly
. The Danish Ingolf-Expedition. Scientific expeditions; Arctic Ocean. COPEPODA 49 1905. Eucalanus elongatus Dana. Esterly, p. 131 â132, figs. 190S. Eucalanus elongatus Dana. v. Bremen, p. 15, fig. 10. 6 a âd. 1908. â â â Farran, p. 21. 1905. 1905- 1906. 1906. Th. Scott, p. 222. Farran, p. 30. Pearson, pp. 6â7. G. O. Sars, p. 2. 1908, 1910. 1911. â Wolfendeu, p. 29. â Farran, pp. 93â94, â Wolfenden, p. 204. Description, f?. Size: 6-5 mm. The females scarcely differ from Giesbrecht's description. No glandular pores were observed in the natatory limbs. The labrnm proper, which is suddenly raised from the region lying in front of it, is by a transverse groove divided into an anterior and a more raised posterior portion; the latter is divided into three hairy lobes, a median and two lateral ones ' â ^ (text-fig. 9 a). The oral surface (fig. 5 a) shows a structure similar to that found in Rhincalanus, but the two first groups of the longitudinal series consist of fairly long and slender bristles. In front of as well as behind the transverse bar the skin is beset with a dense group of strong granules. In front of the trebly divided lamina labiaUs (fig. 5 b) a median longitudinal row of long and a lateral one of very delicate setae are observed; in the middle a row of very short hairs is found on each side, single behind and double in front. Between the serrulae 6-dentatae a longi- tudinal lateral series, a median group and more posteriorly a transverse group of short setae are found; behind the serrnla an oblique group was seen. The area labialis possesses a central group of hairs between the labial lobes, parti)'. continued on the latter, which bear four fairly regular rows of hairs. Text-fig. 9. EiicaLanns elongatus Dana. a. (to the left above) fj. Labrum etc. X 18. b. f?. Abdomen X iS. c. (to the right I fd". Labrum etc. X iS. d. fd'. Abdomen X 18. e. Y9 (St. V). Abdomen X iS. f. (to the right beneath). Yd" (St. V) X 18. fc?. Size: 4-5â5 mm
Size: 1606px × 1555px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectscienti, bookyear1915
