PLATE 22. 



Fig. 65. — Forella concinna Busk. A few adult zooecia showing lateral 

 processes {Jat. pro.), and mamillary process {mam.) on the zooecial and 

 ooecial wall. X 30. 



Fig. 66. — E.scharoides sarsi Smitt. A few young zocecia showing or- 

 bicular orifice (or.) smooth, hyaline front wall, perforated inside the mar- 

 gins. X 30. 



Fig. 67. — H. sarsi. A few adult zoa'cia, showing orifice with sinus (.s.) 

 and jierforated front wall. X 30. 



Fig. 68. — S)niftla trispinosa Johnston. Three young zooecia. X 30. 



Fig. 69. — S. trispinosa. A few adult zocecia showing perforations of the 

 wall, elongated avicularia (av.) and ooecia (ae). X 30. 



Fig. 70. — S. trispinosa. Habit sketch. 



Fig. 71. — Smitt ia calif orniensis sp. nov. A few adult zooecia showing 

 spines, elevated avicularia {av.), and a spatulate avicularium {sp. av.). 



340] 



