. •IMM 8mm K K Fig. 27. Rhamphobrachium ehlersi. a. Bristle from first foot. b. Bristle from third foot. c. Bristle from third foot, highly magnified. The bristles of the first three modified chaetigers are extremely long. Those of the first chaetiger are capillary with hooked tips, there being a suggestion of a false joint just below the hook (Fig. 27 a). Those of the 3rd chaetiger are of similar general struc- ture, but the shaft carries two alternating rows of long spines which cease at a kind of notch which is situated a short distance below the hook (Fig. 27 b, c). The 4th and suc- ceedin
. •IMM 8mm K K Fig. 27. Rhamphobrachium ehlersi. a. Bristle from first foot. b. Bristle from third foot. c. Bristle from third foot, highly magnified. The bristles of the first three modified chaetigers are extremely long. Those of the first chaetiger are capillary with hooked tips, there being a suggestion of a false joint just below the hook (Fig. 27 a). Those of the 3rd chaetiger are of similar general struc- ture, but the shaft carries two alternating rows of long spines which cease at a kind of notch which is situated a short distance below the hook (Fig. 27 b, c). The 4th and suc- ceeding feet are supported by three long pointed yellow acicula. The 4th foot has dorsally capillary bristles and ventrally compound bristles with knife-like blades. At the loth foot there are in addition several comb-chaetae. At about the 20th foot a pair of yellow hooded bidentate subacicular hooks appear and take the place of the com- pound bristles. The dental formula is 7 — 9:9 + 6 — 6.
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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
