. Discovery reports. Discovery (Ship); Scientific expeditions. 148 DISCOVERY REPORTS Nerine sp. Genus Nerine, Johnston (sensu Mesnil) St. 181. 12. iii. 27. Schollaert Channel, Palmer Archipelago. 64° 20' 00" S, 63° 01' 00" W. 160-335 m. Gear OTL. Bottom: mud. Two •2mTnT O-L a b Fig. 56. Nerine, sp. a. Anterior foot. b. Bidentate hook. Description. Two rather ill-preserved anterior fragments, the largest of which has 24 chaetigers and measures 15 mm. by 3 mm. The body is stout and massive and the gills give it a foliaceous appearance. The prostomium is an elongated plate r
. Discovery reports. Discovery (Ship); Scientific expeditions. 148 DISCOVERY REPORTS Nerine sp. Genus Nerine, Johnston (sensu Mesnil) St. 181. 12. iii. 27. Schollaert Channel, Palmer Archipelago. 64° 20' 00" S, 63° 01' 00" W. 160-335 m. Gear OTL. Bottom: mud. Two •2mTnT O-L a b Fig. 56. Nerine, sp. a. Anterior foot. b. Bidentate hook. Description. Two rather ill-preserved anterior fragments, the largest of which has 24 chaetigers and measures 15 mm. by 3 mm. The body is stout and massive and the gills give it a foliaceous appearance. The prostomium is an elongated plate rounded in front and ending behind in a small knob, which I take to represent an occipital tentacle. The palps are lost, and there are no eyes. The hinder end of the prostomium reaches to the middle of the ist chaetiger. The I St chaetiger has an oval dorsal lamella, a rounded ventral lamella and capillary bristles in both rami. The gills begin on the 2nd chaetiger and are continued to the ends of the fragments. They are large and fused with an upward extension of the dorsal lamella (Fig. 56, a). The ventral lamella is vertically elongated and with a rounded edge. Both dorsal and ventral bristles are capillary until the 21st chaetiger, where, in addition to the capillary bristles, a row of 15 bidentate hooded hooks (Fig. 56, b) appears in the ventral ramus. Remarks. These fragments probably belong to Nerine, but the few anterior segments of which they consist do not show any hooks in the dorsal rami. The closely allied NeriHides has no capillary bristles in the dorsal ramus of the ist chaetiger, as well as no hooks in the dorsal ramus. I know no Nerine in which the ventral hooks appear as early as the 21st chaetiger, and I have found no previous record of a Nerine from Antarctic 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 perfectl
Size: 1382px × 1808px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectscientificexpedition
