Page:Smithsonian Miscellaneous Collections, Volume 85.djvu/134

	4.	(✕ 2.) A few thoracic exopodites in which the flattened filaments are unusually well preserved.
	5.	(✕ 4.) Side view of a flattened specimen showing the outlines of body through the carapace, the stalked eye, antennae, four cephalic limbs, and several thoracic limbs. This specimen is particularly instructive, as it shows the outline of the thoracic limbs from the body to their distal end.

Plate 19

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Waptia fieldensis Walcott			20
Fig.	1.	(✕ 2.) Anterior portion of an individual showing the limbs.
	2.	(✕ 2.) Unretouched photograph of a distorted specimen showing the eye particularly well.
	3.	(✕ 2.) Dorsal view of the carapace of a specimen showing the outline of the body, also the small rostrum between the the antennae and the eyes.
	4.	(✕ 3.) Specimen with details of eyes and antennae.

Plate 20

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Waptia fieldensis Walcott			20
Fig.	1.	(✕ 2.) Posterior portion of specimen preserving the three segments, the anal opening, and the lobed, segmented caudal furca.
	2.	(✕ 3.) Anterior portion of a carapace, median rostral plate, antennae, stalked eyes, and a palp on the left side.
	3.	(✕ 2.) Side view of a flattened specimen in which a number of the exopodites retain the fringing filaments, some of the latter being gathered in a cluster at the distal ends. This specimen also shows the outlines of elongate triangular, light-colored, shiny places that may indicate the interior of the exopodite or possibly a rudimentary endopodite.

Plate 21

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Skania fragilis Walcott			25
Fig.	1.	(✕ 4.) Specimen showing the flattened intestine and outline of thoracic segments.
Waptia fieldensis Walcott			20
Fig.	2.	(✕ 2.) Dorsal view of a flattened specimen in which the carapace has been removed from over the cephalic area and portion of the thoracic region. The proximal portion of eight thoracic limbs is clearly shown, also of three pairs of cephalic limbs.