Page:Smithsonian Miscellaneous Collections, Volume 85.djvu/129

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no. 3
burgess shale fossils—walcott
39

Plate 4

PAGE
Canadia spinosa Walcott 4
Fig. 1. (✕ 1.5.) Specimen having an unusually straight position, with all the spines turned backward and thus crowded together.
2, 3. Natural size and enlarged (✕ 3) views of a fine complete individual. The enlarged picture has been retouched.


Plate 5

PAGE
Canadia spinosa Walcott 4
Figs. 1, 2. Natural size and enlarged (✕ 4) photographs. The larger one has been retouched.


Plate 6

PAGE
Canadia spinosa Walcott 4
Fig. 1. (✕ 2.) Photograph of a well preserved specimen.
2. (✕ 2.) Unretouched illustration of another specimen whose specific identity Doctor Walcott doubted somewhat.
Canadia sparsa Walcott 5
Fig. 3. (✕ 2.) Unretouched photograph of this peculiar worm.
Canadia irregularis Walcott 5
Fig. 4. Small, somewhat broken specimen. (See pl. 9, fig. 3, for enlargement.)
5. (✕ 2.) An unretouched photograph of the lectotype.
6. (✕ 2.) Coiled specimen doubtfully referable to the species.


Plate 7

PAGE
Canadia setigera Walcott 5
Fig. 1. (✕ 2.) Unretouched photograph of a rather complete curled specimen.
4. (✕ 2.) Unretouched photograph showing the attachment of the setae.
Canadia dubia Walcott 6
Fig. 2. (✕ 3.) A good illustration of this small form.
Canadia irregularis Walcott 5
Fig. 3. (✕ 3.) Enlargement of specimen illustrated as fig. 4 on preceding plate.