The annals and magazine of natural history : zoology, botany, and geology . nent spines. The skeleton is made up of veiy thick fibres, which con-sist of niultiserially arranged spicules bound together bya considerai)le quantity ot spongin. The main fibres runvertically Ujnvards through the sponge, dividing from time totime, and their extremities [iroject above the general surfaceof the sponge and form the spines just referred to. Thty areunited by rather thinner fibres at right angles to them, whichrun only frou) one main HIjre to the next and do not them-selves form continuous fibres. The who
The annals and magazine of natural history : zoology, botany, and geology . nent spines. The skeleton is made up of veiy thick fibres, which con-sist of niultiserially arranged spicules bound together bya considerai)le quantity ot spongin. The main fibres runvertically Ujnvards through the sponge, dividing from time totime, and their extremities [iroject above the general surfaceof the sponge and form the spines just referred to. Thty areunited by rather thinner fibres at right angles to them, whichrun only frou) one main HIjre to the next and do not them-selves form continuous fibres. The whole constitutes adense firm netwurk. 96 ]\Iiss J. Stephens on new Tlic genumiles are numerous. They are spherical amioccur siiiiily towards the base of the sponge. Tliey arealoiit 055 mm. in diameter. Each is surrouided by atiiick coiit of spoMgin. Outside this is a layer of gxMiimuIe-spieuhs, lying two or three deep and densely [)ackixl t.)^!ie majority are arranged more or less tangentially, but;sj :ie are pLiced neaily vertically and project, giving the Fiff.
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Keywords: ., bookcentury1800, bookidser9annalsmaga, booksubjectnaturalhistory
