An Introduction to the Study of Fishes
- Downloads
- Under 100
- Pages
- 622
About this book
An Introduction to the Study of Fishes identifies teeth as one of the most important elements in classification, with their arrangement and form referred to in accounts of families and genera. The discussion of hinged teeth explains that many fishes, especially predatory fishes with long, lancet-shaped teeth, have some or all teeth capable of bending inward. The account of Branchiostoma describes a spinal chord tapering at both ends, without an anterior cerebral swelling or anything approaching a brain.
The anatomical description of a broad, depressed head specifies a body depressed behind the head, becoming sub-cylindrical toward the tail and covered with ctenoid scales. The account of the lateral line identifies its openings as outlets of a muciferous duct continuing onto the head and branching into the jaw region.
Contents
About the author
More from this genre
See all- F Fishing Grounds of the Gulf of MaineFishing Grounds of the Gulf of Maine
- A The Antiquity of ManThe Antiquity of Man
- D Diversions of a NaturalistDiversions of a Naturalist
- T Texas Flowers in Natural ColorsTexas Flowers in Natural Colors
- E Elements of PhysiophilosophyElements of Physiophilosophy
- S The Science and Philosophy of the OrganismThe Science and Philosophy of the Organism
Discussion
No comments yet. Share a thought, a question or a favourite passage.
Copyright concern? Read our DMCA policy
Read or download
Public domain book This work is in the public domain and free of copyright. Anyone may read, download and share it.
- PDF 25 MB
- EPUB 22 MB
Downloads start right away. How to open EPUB on your phone
Book facts
- Author
- Albert C. L. G. Günther
- Reading time
- About 13 hours
- Pages
- 622
- Language
- English
- Genre
- Biology
- Formats
- PDF, EPUB, Read online