Mouthparts of C. sp. 4s
a. Premandible - note teeth about equal length with inner tooth much wider. b. Pecten epipharyngis with sharp teeth.
c.Mentum - note the sharp teeth, well separate c2 teeth, and little reduction of 4th laterals. d. Antenna.
e. Ventromentum with about 40 striae. f. Mandible - note the poorly developed 3rd inner tooth (type IA).

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