Balanidæ (balanide)

pl. [NL., Bal a no idea . See cuts under Balanus . pe ary. IMG:content-1580.png:[ocr errors] Nut-weevil (Bal an in us rectus, Say). a, dorsal view; b, lateral view. (Vertical line shows natural size, including proboscis.) balanite (bal'a-nīt), n. [ balanites : see Balanites.] 1. A kind of precious stone.-2. A fo il cirriped of the family Balanida. Balanites (bal-a-ni'tēz), n. [L., medicine, and the hard woody nut is made into a kind of fireworks. The African species is B. Ægyptiaca. 3. [NL.] A genus of fo il cirripeds, of the family Balanida . balanitis (bal-a-nī'tis), n. [NL., βάλανος , acorn, glans penis, + -it is.] In pathol., in- flamm at i on of the glans penis. balanoglo id (bal a-nō-glos'id), n. A member of the family Bal a nog los sida. Balanoglo idæ (bal a-no-glos'i-dē), n. pl. [NL., Bal a no glo us + -ida.] The family of invertebrates represented by the genus Bala no glo us. Bal a no glo us (bal"a-nō-glos'us), n. [NL., tact with it when closed. It is a construction de. Gr. βάλανος, an acorn, + γλῶσσα, tongue.] 1. An IMG:content-1581.png:[merged small][merged small][graphic][subsumed][merged small][subsumed][subsumed][subsumed][subsumed][subsumed][ocr errors][subsumed][subsumed][subsumed][subsumed][subsumed][subsumed][ocr errors][ocr errors][subsumed][subsumed][merged small][subsumed] I. The Tornaria larva, about 1-12 of an inch long, enlarged, side view. a, anus; b , ve els leading to the dorsal pore, d , from sac of the water-vascular system, w ; w , prolongation of the sac; 4 , heart; 2, intestine; 3, stomach; 0, esophagus; m , mouth; ", ", lobes of alimentary canal; mb , muscular band from eye-speck, e, to water-vascular sac. II. Young bal a no glo us. Letters as before, except g , the first-formed branchial stigmata. III. Bal a no glo us, more advanced. c, collar; p, proboscis. Vermes. The members of this genus are elongated, footle , soft-bodied worms, with the mouth at one end of the body and the anus at the other. The fore part of the body presents a kind of collar surrounding a constriction from which springs a long hollow proboscis-like organ, whence the name Bal a no glo us, this organ being like a tongue somewhat acorn-shaped, proceeding from within the collar like an acorn from its cup. On the portion of the body from which the proboscis springs there is a flattened area with a longitudinal series of branchial apertures, communicating with branchial sacs connected with the alimentary canal; hence the term Enteropneust a. In consequence of this relation of the respiratory to the alimentary canal, Huxley a ociates Bal a no glo us with Tunic at a (or ascidians) as members of a pharyngopneustal series. The larval form of Bal a no glo us was formerly called Tornaria, and regarded as an echinoderm from its great resemblance to the larva of a starfish. 2. [ l. c.] A member of the genus Bal a no glo us. balanoid (bal'a-noid), a. and n. [ II. n. An acorn-shell; a cirriped of the family Balanida . Bal a no idea (bal-a-noi'de-ä), n. pl. [NL.,