Page:Smithsonian Miscellaneous Collections, Volume 85.djvu/133

	5.	(✕ 4.) Specimen showing the expanded joints of the endopodites of the cephalic limbs.
	6.	(✕ 3.) Partly side view of a crushed and distorted specimen illustrated for the purpose of showing the exopodites that occur near the body, the proximal part of the endopodites with the protopodites having been flaked off from above the exopodites in the specimen; in their natural position the exopodites were probably above and between the endopodites. The outer ends of the long, strong endopodites are well shown in this specimen, although the joints have been obscured. The slender jointed leglike structure associated with the exopodites may be the distal part of the endopodites of the right side.

Plate 17

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Burgessia bella Walcott			15
Fig.	1.	(✕ 3.) Another specimen preserving mainly the "skeleton."
	2.	(✕ 2.) A small individual crushed obliquely.
	3.	(✕ 3.) Ventral view of a specimen preserving the reflected anterior margin and labrum, also the antennae, outlines of the inner portions of the cephalic limbs, and more or less distinctly outlined thoracic endopodites with transversely expanded joints. The anal plate is clearly indicated, also the anterior end of the telson.
	4.	(✕ 4.) Side view of a crushed specimen preserving on the left lower side the outlines of 10 thoracic legs, on the right side the outlines of four entire lobelike exopodites and the distal end of four posterior to them. The exopodites still show slight traces of fine filaments (?) along the posterior and outer margins.

Plate 18

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Burgessia bella Walcott			15
Fig.	1	(✕ 2.) An incomplete specimen showing the manner in which the limbs project beyond the carapace.
Waptia fieldensis Walcott			20
Fig.	2.	(✕ 4.) Side view of a flattened specimen preserving six or more cephalic limbs, the limbs from both sides being more or less crushed down together.
	3.	(✕ 2.) Specimen showing on the right side a flattened uninjured antennae in its natural form, and on the left side only the outline of the interior of the joints. The latter mode of occurrence is quite common for the antennae and other appendages. This specimen also has the stalked eye preserved on the right side.