Hypertext Webster Gateway: "Pectostraca"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Pectostraca \Pec*tos"tra*ca\, n. pl. [NL., fr. Gr. ? fixed + ?
shell of a testacean.] (Zo["o]l.)
A degenerate order of Crustacea, including the Rhizocephala
and Cirripedia.
Additional Hypertext Webster Gateway Lookup
Gateway by dict@stokkie.net
stock only wrote the gateway and does not have any control over the contents;
see the Webster Gateway FAQ,
and also the Back-end/database links and credits.