Brach in a (brakina)

[NL., under the impre ion that the organism was a distinct animal. Brach in ides . IMG:content-2401.png:[blocks in formation] at least as true mollusks; but by later writers they have brachycephal i (brak-i-sef'a-li), n. pl. [NL.. been separated as representing (alone or with day a pl. of brachycephal us: see brachycephalous.] In peculiar branch or subkingdom Molluscoidea, and approx i seeb mated to or or a ociated with the worms, Vermes. The cla ethnol., those people whose cephalic index is generally divided into two subcla es or orders, Arthro pomata or Clistenterata, and Lyopomata or Tret enter at a. The families of the inarticulate or lyopomatous brachiopods are the Lingulidæ, Craniidæ, and Discinidæ, all of which have living representatives. The families of the articulate or arthropomatous brachiopods are the Terebra tulidæ, Rhynchonellidæ, The cid a, Spiriferidæ, Konincki nidæ, Pent a me ride, Strop home nid a, Orthidæ, and Productidæ. The species are very numerous, nearly 4,000 having been described; they are mostly extinct, and all marine, They flourished especially during the Silurian period, and some Silurian genera, as Lingula, are still extant. See cut under Linguline. Many of the species, especially of the family Terebratulidæ, are known as lampshells.