No. 4.] DAWSON — POST-PLIOCENE. 371 



Hippotlioa expansa, Dawson. 



Fossil — Beauport ; Rivicre-du-Loup. 



Recent — Gaspe ; Labrador, Maine (Packard). 



Tubulipora jiahellaris, Johnston. 

 Fossil — Beauport ; Riviere-du-Loup. 

 Recent — Gaspe, Labrador (Packard) (= T. palmata, Wood). 



Lepralia hj/(dui((, Johnston. 



Fossil — Beauport ; Riviere-du-Loup. 

 Recent — Gaspe. 



Lepralia jjertusa, Thomson. 



Fossil — Beauport ; Labrador ; Riviere-du-Loup. 

 Recent — Gaspe, Labrador (Packard). 



Lepralia quadricornuta^ Dawson. 



Fossil — Leda clay, Montreal. 



Not yet found recent. 



Mr. T. Curry, of Montreal, has recently found specimens in a 

 very perfect state. They show that the cells are sculptured in a 

 papillo-striate manner, and that the ovi-capsules are globular and 

 granulate. Some cells have a projection for a vibraculum or 

 avicularium at one side of the aperture. A few have two of 

 these. Old colonies have a pitted calcareous deposit between the 

 cells. The large size and narrow aperture with deep sulcas in 

 front and four spines behind are as in the specimens formerly 

 described. 



Lepralia spinifera ? Busk. 

 Fossil — Riviere-du-Loup. 



L. violacea? Johnston. 



Fossil — Pdviere-du-Loup. 



It wants the depression in front of the cell said to be charac- 

 teristic of the species. (J. F. Whiteaves.) 



Z/. variolosa, Johnston. 



Fossil — Riviere-du-Loup. 



Recent — Gaspe. 



Dr. Smitt unites this with L. trispinosa of Johnston, and con- 

 siders both as varieties of L. Jacotini, Audouin. L. Jacotini, 

 Gray, is a very different species. (J. F, W.) 



Lepralia Belli, Dawson. 

 Fossil — Riviere-du-Loup. 

 Recent — Gaspe; Labrador (Packard). 



