. Discovery reports. Discovery (Ship); Scientific expeditions. 114 DISCOVERY REPORTS Remarks. Four anterior fragments, the largest of which has about 40 chaetigers and measures 18 mm. by 3 mm. including the feet. The proboscis was withdrawn in all the specimens, which makes the examination of the papillae impracticable. These examples do not altogether agree with Augener's description, especially as regards the dorsal cirri of the anterior segments. The first two chaetigers are biramous and not uniramous as stated by Augener: in this they agree with Fauvel's original description. Moreover, the
. Discovery reports. Discovery (Ship); Scientific expeditions. 114 DISCOVERY REPORTS Remarks. Four anterior fragments, the largest of which has about 40 chaetigers and measures 18 mm. by 3 mm. including the feet. The proboscis was withdrawn in all the specimens, which makes the examination of the papillae impracticable. These examples do not altogether agree with Augener's description, especially as regards the dorsal cirri of the anterior segments. The first two chaetigers are biramous and not uniramous as stated by Augener: in this they agree with Fauvel's original description. Moreover, the ist chaetiger has a long ventral tentacular cirrus, the 2nd has an equally long thread-like dorsal cirrus, and the 3rd has a shorter but still thread-like dorsal cirrus, intermediate in size between that of the 2nd and 4th chaetigers. For about the following twenty chaetigers (Fig. 40, a) the dorsal cirri are very short and thick; and between the 20th and 25th chaetigers they lengthen to form the long filiform process shown in Augener's figure (loc. cit. pi. iii, fig-59)- The middle feet (Fig. 40, b) correspond to Augener's description and figures. The pedal lobes are conical. The dorsal ramus has a fairly large delicate rounded posterior lamella and a very small anterior lamella: below this is the very long dorsal cirrus and the gill. The ventral ramus has a dorsal cirriform process, a large lanceolate posterior lamella and a small conical anterior lamella. Behind the ventral cirrus the skin is expanded into a small oval membrane. Ehlers' Nephthys inermis, besides having no papillae, lacks the dorsal cirri of the 2nd and 3rd chaetigers. Nephthys serratifolia, Ehlers. Ehlers, 1897, p. 24, pi. i, fig. 13. St. 51. 4. V. 26. OflF Eddystone Rock, East Falkland Island. From 7 miles N 50° E to 7-6 miles N 63° E of Eddvstone Rock. 115 m. Gear DLH. Bottom: fine sand. Six specimens. Zmm. T3mm ^O a. Please note that these images are extracted from scanned page images that may have bee
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectscientificexpedition
