a System of the Calcareoris Sponges. 187 



Genus 32. -^^Artynella, nov. gen. 



Gen. char. Stomachal cavity chambered, traversed by irre- 

 gular partitions. Three species. 



116. ^A. compressa^ H. Norway. 

 in.'^A. rhopalodes^H. Norway. 



118. A. utriculus, H. {Ute utriculus, var., 0. S.). Green- 



land. 



Family XIII. Lipostomida, H. 



Character. The mature calcareous sponge forms one person 

 without a mouth-opening, the body-wall of which is traversed 

 by irregular branched canals (as in the Dyssycida). 



Genus 33. *Lipostomella, nov. gen. 



Gen. char. Stomachal cavity quite simple, without com- 

 partments. Two species. 



119. *L. clausa^ H. Mogador (H.). 



120. ^L. capsula, H. Algoa Bay (Poehl). 



Order V. COPHOSYCA, H. 



Character. The mature calcareous sponge forms a stock 

 without a mouth-opening. (The body appears under the form 

 either of a branching shrub or of a root-like network, in con- 

 sequence of partial ramification, or, lastly, of a shapeless mass 

 formed by the complete amalgamation of several persons. 

 The stomachal cavities of the persons are always more or less 

 separated, whilst their mouth-openings are obliterated.) 



Family XIV. Sycorrhizida, H. 



Character. The mature calcareous sponge forms a stock 

 without mouth-openings, the canal-walls of which are tra- 

 versed by simple cutaneous pores. 



Genus 34. *Sycorrhiza, nov. gen. 



Gen. char. The mouthless stock forms a root-like network 

 composed of communicating tubes, the inner wall of which is 

 smooth (not villous), and their cavity simple (not chambered). 

 Two species. 



121. *>S^. coriaceay H. {Leucosolenia coriacea^ Bb.). British 



coasts. 



122. */S'. corallorrhiza^ H. Norway. 



Genus 35. *Aulorrhiza, nov. gen. 



Gen. char. The mouthless stock forms a root-like network 



13* 



