| 释义 |
‖ prehallux, præ- Anat. and Zool.|priːˈhæləks|
[mod.L., f. præ, pre- B. 3 + hallux. Named 1885 by Bardeleben of Jena.]
A rudimentary structure, osseous or cartilaginous, found on the inner side of the tarsus of some Mammalia, Reptilia, and Batrachia, and supposed to represent an additional digit.
1888Proc. Zool. Soc. Lond. 150 That the pre-hallux takes on certain of the essential relationships of a digit is beyond dispute. That it really represents one is another question. 1889Athenæum 18 May 635/3 Prof. Bardeleben [sent a paper] on the præpollex and præhallux of the mammalian skeleton... He also stated that he had discovered vestiges of the præhallux and præpollex in certain Reptilia. 1891Flower & Lydekker Mammalia ii. 49 In the posterior limb the tibial sesamoid, and a fibular ossification corresponding to the pisiform, are regarded as representing a prehallux and a postminimus. |