Part 174

SCA´PUS, n. Entire stem of a feather; calamus + rachis. (144.)

SCHIZOGNATH´OUS, a. Having the palate bones separated.

SCHIZORHI´NAL, a. Having the nasal bones separated.

SCI´ATIC, n. Same as ischiatic; pertaining to the ischia.

SCIS´SION, n. A cutting apart; fissuration.

SCIS´SOR-SHAPED (tail), a. Deeply forficate.

SCLEROT´IC, n. Dense opaque fibrous membrane forming most of the eyeball.

SCOL´LOPED, a. Lobed. (137.)

SCOLO´PACINE, a. Snipe-like.

SCRO´TUM, n. Bag holding testicles.

SCUTEL´LATE, a. Provided with scutella.

SCUTEL´LATE TARSUS. (110.)

SCUTEL´LUM, n.; pl. scutella. Scale. Any one of the divisions into which the podotheca may be broken up by regular lines of impression; especially such divisions when large and in regular vertical series; various smaller divisions being called reticulations. Scutella occur especially on the anterior face of the tarsus and top of the toes; often also on the back of the tarsus; sometimes they completely encircle the tarsus. When thus large, some ornithologists call them scuta; then using scutella for the smaller irregular reticulations. Scutella are sometimes obsolete. (Commonly, but erroneously, written scutellæ.) (109.)

SCU´TIFORM, a. Scalelike.

SCU´TUM, n.; pl. scuta. See SCUTELLUM.

SEC´ONDARY COV´ERTS. The smaller wing-feathers growing from the forearm and its region, overlying the bases of the secondary quills. (89.)

SEC´ONDARY QUILLS or SEC´ONDARIES. Quills growing upon the forearm.

SEG´MENT, n. A portion specially distinguished. The tarsus is a segment of the leg.

SEGMENTA´TION, n. Division into parts. Particularly applied to a process which takes place in the vitellus or yolk during incubation.

SEL´LA TUR´CICA, n. A certain part of the sphenoid bone.

SE´MEN, n. The male fluid, containing spermatozoa.

SEMI- (in composition). Half.

SEMILU´NAR, a. Crescentic.

SEMIMEMBRANO´SUS, n. A certain muscle of the thigh.

SEM´INAL, a. Pertaining to the male generative fluid.

SEMINIF´EROUS, a. Secreting or conveying semen.

SEMIPAL´MATE, a. Half webbed; having a basal membrane between the front toes not reaching to their ends.

SEM´IPLUME, n. Feather with pennaceous stem and plumulaceous web.