House Martin Skull

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“The post-oral arches of the house martin, at middle of period of incubation, lateral view, X14 diameters. mk, stumpof meckelian or mandibular rod, its articular part, ar already shapen; q, quadrate bone, or suspensorium of lower jaw, with a free anterior orbital process and long posterior otic process articulating with the ear-capsule, of which teo, tympanic wing of occipital, is a part; mst, est, sst, ist, sth, parts of suspensorium of the third post-oral arch, not completed to chy; mst, medio-stapedial, tp come away from teo, bringing a piece with it, the true stapes or columella auris; the oval base of the stapes fitting into the future fenestra ovalis, or oval window looking into the cochlea; sst, supra-stapedial; est, extra-stapedial; ist, infra-stapedial, which will unite with sth, the stylo-hyal; chy and bhym cerato-hyal and basi-hyal, distal parts of the same arch; bbr, br 1, br2, basi-branchial, epi-branchial and cerato-branchial pieces of the third arch, composing the rest of the hyoid bone; tg, tongue.” Elliot Coues, 1884


Bird Anatomy


Elliot Coues Key to North American Birds (Boston, MA: Estes and Lauriat, 1884)


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2400×2177, 933.2 KiB

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Small GIF

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