604 



Kepoet of the State Geologist. 



series ; cell mouths small, near one end of the cells. The animal 

 had the power of excavating the substance of the body upon 

 which it grew. 



YiNELLA, Ulrich. 

 (Jour. Cin. Soc. Nat. Hist., Yol. XII, p. 173. 1890.) 

 Type, Yinella repens, Ulrich. 



" Zoarium attached to foreign bodies ; consisting of exceedingly 

 slender, ramifying, thread-like tubular stolons, arranged in a 

 more or less distinctly radiating manner ; surface of tubes some- 

 times faintly lined longitudinally ; a row of widely separated small 

 pores along the center of the surface of the tubes ; cells unknown. 

 The cells must have been deciduous and developed by budding 

 from the creeping stolons from the points now represented by 

 the pores." 



222 



Fig. 222. Vinella repens, natural size, and a portion of the colony, xl8. 



