Die Anatomie des menschlichen Auges

The origin and development of the extrinsic ocular muscles in the domestic cat.

Spermophilus citellus (Linnaeus, 1766) is a medium-sized sciurid commonly called the European ground squirrel. The species inhabits grasslands in central and southeastern Europe on a range from short-grass steppes to meadow orchards, and from sea level to an elevation of 2,500 m. These squirrels live in colonies and construct burrows used for hibernation, reproduction, refuge, and resting. Due to serious declines in many portions of its range, the species is listed as “Vulnerable” by the International Union for Conservation of Nature and Natural Resources. It is also protected by the Bern Convention (Appendix II), and the European Union Habitats and Species Directive (Annexes II and IV).

/pdf/spermophilus-citellus-rodentia-sciuridae-2146jq0cbr.pdf

Spermophilus citellus (Rodentia: Sciuridae)

The origin and development of the head cavities in the human embryo

https://bjo.bmj.com/content/bjophthalmol/9/4/154.full.pdf

Otokar Lešer

Papers

On the development of the extra-ocular muscles in some mammals.