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Document Type

Research

Abstract

The short esophagus leads obliquely dorsad into the crop which is located in the head immediately posterior from the brain and extending posteriorly to the beginning of the first thoracic segment. The crop is irregularly rectangular in form with a chitinous framework well-armed with teeth and stiff setae. (Fig. 1). It is divided into two parts, the cardiac and the pyloric. The cardiac division is smaller than the pyloric, being slightly shorter and a little more than one-half as wide.

Publication Date

1926

Journal Title

Proceedings of the Iowa Academy of Science

Volume

33

Issue

1

First Page

329

Last Page

335

Copyright

© Copyright 1926 by the Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

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