The animal kingdom : arranged after its organization, forming a natural history of animals, and an introduction to comparative anatomy . Lam.] has a little, spoon-shaped cavity in each valve, and a little loose piece, in form of a shield, at the other {Claraffclla, Lam.) has one of its valves agglutinated to the tube, and the other loose. A living speciesis found in the madrepores of the Sicilian seas, which has been described by M. Audouin. [The best descriptionof this genus is given by Messrs. Broderip and Owen in the Trans, of the Zoological Society^ Some naturalists think we shou
The animal kingdom : arranged after its organization, forming a natural history of animals, and an introduction to comparative anatomy . Lam.] has a little, spoon-shaped cavity in each valve, and a little loose piece, in form of a shield, at the other {Claraffclla, Lam.) has one of its valves agglutinated to the tube, and the other loose. A living speciesis found in the madrepores of the Sicilian seas, which has been described by M. Audouin. [The best descriptionof this genus is given by Messrs. Broderip and Owen in the Trans, of the Zoological Society^ Some naturalists think we should also place in this family The Aspergillum,— The shell of which is formed of an elon-gated, conical tube, closed at its widest ex-|^4*»J^* tremity by a disk perforated with numerous !-??»!»•?? small tubular holes ; the little tubes of the»— « ,,K^ *V °^ S^- Ijeing longest, form a kind ofcorolla round it. The reason for approxi-mating them to the Acephala with tubes is ;inum. fo^^J ;„ „,g ^^^.j jj^j^j j,,g^j. j^ ^ doubic • According to Oeilmres, anil Fistulana strc tlie same— 382 MOLLUSCA. projection on one part of the cone, wliich really resembles the two valves of the Acephales. The re-semblance between its little tubes, and those which envelope the tentacula of certain Terebella, formerlycaused this animal to be referred to the Annelides. The best known species (Asp. jnvanm) is seven or eisflit inches in length. [R!a\% conjectures that the animalof Aspergillum is essentially the same as that of ClavaKella, and, as well as Blainville, he erroneously thinks tliatbotli are furnished with a byssus passing tlirough all the anterior apertures of the tube, to attach it to foreign Aspergillum probably burrows in sand, the disk underneath, and the tubular part uppermost.] THE SECOND ORDER OF THE SlIELL-LESS ACEPHALES, (or A. ). * This is a small order, and differs so far from the other Acephales tha
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Keywords: ., bookauthorwe, bookcentury1800, bookdecade1840, booksubjectanimals
