INVEKTEBRATE ANIMALS. S 



Class SPONGIDA. (j-Koyyog, a Sponge. 



The groups exhibit a small portion only of the entire collection, ivhich 

 Mr. T. Higgin, of Huyton, has kindly undertaken to name and 

 arrange for the use of students. 



Group 5.- Orders MYXOSPONGI^ and CALCISPONGI^ 



(Haeckel). Sponges possessing no fibrous endo-skeleton 

 and Calcareous Sponges. 



Order FIBROSPONGI^ (Haeckel). 

 Group 6.— Family HEXACTINELLID^ (Schmidt), Part I. 

 10, sir ; OLKTiv, a ray. Spicules silicious, with rect- 

 angular rays. 



Genus HYALONEMA. uaAoc, crystal ; vriy^oc, thread. 

 H Hyalonema S'leboldii, the glass-rope Sponge- 

 several specimens, exhibiting the body of the 

 sponge attached to the stem encrusted by a 

 commensal Actinozoon Palythoa. 



Genus EUPLECTELLA. eO, icell; ttXektoc, twined. 

 Euplectella aspcrgillum. Sponge from the Island 

 of Cebu, Philippines, where it is known by the 

 name of " Regadera." It has also been called 

 Venus's Flower-basket. 



Group 7.— Family HEXACTINELLID^ (Schmidt). Part II. 

 IT Pheronema Grayi (Kent). Collected off the 



coast of Portugal, and presented by W. 



Saville Kent. 

 Holtenia Carpenteri (Wyville Thomson). Globular 



Anchor- Sponge, collected during the expedition 



of H.M.S. " Porcupine," and presented by 



Prof. Wyville Thomson. 

 Specimens of allied fossils. Ventriculites and 



Choanites, from the chalk formation. 



