GL088ABT. 
325 
Ro tif'e RA (Lat. rota, a wheel; 
fero, I bear). A class of worms 
with a pair of ciliated vela 
which ill motion resemble 
wheels. 
Sa git'tal. Referring to a line 
or plane parallel with the 
sagittal or median suture of 
the skull of higher vertebrates. 
Sar'code (Gr. sarx, flesh; odos, 
way). Equivalent and earlier 
term for protoplasm. 
Sca brous. Rough like a file, 
with small raised dots. 
Scle'rite. Any separate piece 
of an insect's integument. 
Scute. Applied to the dorsal 
pieces in Myriopods. 
Sep'tum. a partition. 
So-mat'ic. Relating to the body. 
Som'ite. a segment of a seg- 
mented animal, such as a 
worm. 
Se-ta'ce-ous (Lat. seta, a bristle). 
Bristle-like. 
Spi'ra-cle (hfii.spiro, to breathe). 
The lateral breathing pores of 
insects. 
Stig'ma-ta (Gr. stigma, a mark). 
A synonym of spiracle. 
Sto'lon (Lwt.stolo, a shoot spring- 
ing from the root of a plant). 
Applied to the root-like creep- 
ing growths of polyps and 
other Coelcnterates. 
Sto-mo-d^'um. The primitive 
mouth and oesophagus of the 
embryo of worms and Ar- 
thropoda. 
Strep stp'te-ra (Gr. strephis, a 
twist ; pteron, wing). A group 
of beetles, whose minute front 
wings appear as if twisted. 
Stro'bi-la (Gr. strobilos, a fir 
cone). The chain of zooids of 
a larval medusa; the chain of 
proglottides of a tape-worm. 
Suc-to'ri-al. Adapted for suck- 
ing. 
Su-pra-or'bi-tal,. Above the or- 
bits. 
Su'ture. a seam or impressed 
line between the bones of the 
skull or parts of the crust of an 
Arthropod. 
Sym'phy-sis (Gr. sumphusis, a 
growing together). The union 
of two bones. 
Tac'tile. Relating to the sense 
of touch. 
T^-nid'i-um. The band or chiti- 
nous fibre, forming the so- 
called ''spiral thread" of the 
tracheae of insects. 
Tel'son (Gr. telson, from telos, 
end). The rudimentary ter- 
minal segment of the abdomen 
of Arthropods. 
Ten'e-ral. a state of the Neu- 
ropterous imago after exclu- 
sion from the pupa, in which 
it has not fully completed its 
coloring, clothing, etc. 
Ten-tac'u-lum (Lat. tenio, 1 
touch). A feeler or tentacle. 
Ter'gum (Lat. back). The dorsal 
region of Arthropods. 
Test (Lat. testa, a shell). The 
thickened integument of Tuni- 
cata. 
Tes-ta'ceous. Dull red; brick 
color. 
Tho'rax (Gr. tJiorax, a breast- 
plate). The chest in verte- 
brates; the middle body in in- 
sects and some Crustacea, 
