SCOLIOPLEURA. 



[ 684 ] SEBACEOUS FOLLICLES. 



BIBL. LeVeiUe", Ann. Sc. N. 2. xx. 218; 

 Berkeley, Hort. Jn. iii. 97 ; Fries, Sum. 

 Veg. 477. 



SCOLIOPLEU'RA, Grunow. A genus 

 of Diatomaceee. Frustules those of Na- 

 vicula or Pinnularia^ with the median line 

 and hoop curved. 



BIBL. Grunow, Wien. Verh. 1860; 

 Rabenh. Alg. i. 228. 



SCOLOPEN'DRIUM, Smith, Hares- 

 tongue. A genus of Scolopendrieae (Poly- 

 podiaceous Ferns), represented by the indi- 

 genous species Sc. vulgare (fig. 221, p. 319). 



SCOLOPENDRIEJ5. A family of 

 Polypodiaceous Ferns ; containing the single 

 genus Scolopendrium. 



SCRUPA'RIA, Hincks. A genus of 

 Eucratiidse (Polyzoa). S. clavata, on other 

 Polyzoa. (Hincks, Polyz. 21.) 



SCRUPOCELLA'RIA, Van Beneden 

 (Cellularia, Johnst., pt.). A genus of Chei- 

 lostomatous Polyzoa, of the family Cellula- 

 riidaB. 



Char. Cells with a vibraculum behind, 

 and a sessile avicularium at the upper and 

 outer angle; orifice spiuous. Five species. 



S. scruposa. Cells without an operculum. 

 Common on Algae, &c. 



S. scrupea. Cells with a stalked reniform 

 operculum. 



BIBL. Johnston, Br. Zooph. 336; Busk, 

 Ann. N. H. 1851, vii. 83; Hincks, Polyz. 

 43. 



SCUTELLID'IUM, Clans. A genus of 

 Copepoda. 2 species, on Laminaria. (Brady, 

 Copep. ii. 175.) 



SCUTOVER'TEX, Mich. A genus of 

 Oribatidae (Acarina), allied to Erem&us. 

 S. sculptus, brown-black. (Michael, Jn. Mic. 

 Soc. 1879, ii. 241 ; 1880, 177.) 



SCU'TULA, Tulasne. A genus of Coc- 

 cocarpeae (Gymnocarpous Lichens), para- 

 sitic, found upon Peltigera canina. 



BIBL. Tulasne, Ann. Sc. Nat. 3. xvii. 118; 

 Lindsay, Qu. Mic. Jn. 1869, 140. 



SCYPHID'IA, Duj. A genus of Peri- 

 trichous Infusoria, family Vorticellina. 



Char. Body oblong or campanulate, nar- 

 rowed at the base, which is very contractile, 

 covered with a reticular integument. 



8. rugosa (PL 31. tig. 74). Body with 

 oblique striae or rugae, not numerous ; 

 freshwater; length 1-550". Four other 

 species. 



BIBL. Clap. &Lach./rc/. 116; Kent./w/. 

 658. 



SCYP'HIUS, Koch. A genus of Trom- 

 bidina (Acarina). S. diver sicolor, very 



minute, in damp moss, under decaying 

 leaves, c. 



SCYTO'MONAS, Stein. A genus of 

 Flagellate Infusoria. Free, ovate, form 

 persistent, flagellum single, no mouth. S. 

 pusilla; freshwater; length 1-1000". (Kent, 

 Inf. 241.) 



'SCYTONE'MA, Berk. A genus of Os- 

 cillatoriaceae (Confervoid Algae), especially 

 distinguished by the mode of branching of 

 the filaments. We can only make out with 

 certainty one British species of the genus as 

 now restricted, S. Myochrous (PI. 8. fig. 19), 

 which grows in alpine bogs and rivulets, 

 and is composed of decumbent filaments 

 interwoven into a dark- brown stratum. 



BIBL. Harvey, Br. Alg. 1. 155 ; Hassall, 

 Alg. 235, pi. 68 ; Kiitz. Sp. Alg. 303, Tab. 

 Phyc. 



Fig. 634. 



Compound sebaceous eland, IVom the nose, opening 

 upon the surface with a hair-follicle, a, b, c, as in the 

 next figure ; d, lobules of the compound gland ; e, hair- 

 follicle (root-sheath) ; /, the hair. 



Magnified 50 diameters. 



SEBACEOUS FOLLICLESon 

 GLANDS. These organs exist pretty 



