160 



FLABELLIFERA • CORALLANIDAE 



Figure 73. Alcirona insularis: A, pereopod 1. Alcirona krebsi: B, 6, C, maxilla 1; D, 

 pereopod 1. 



hensile, pereopods 4-7 ambulatory. All rami of pleopods bearing marginal 

 setae. Pleotelson often with characteristic spination and tuberculation; lat- 

 eral margins often with incision. 



REMARKS Excorallana subtilis (Hansen, 1890) was described from St. 

 Thomas, U.S. Virgin Islands, based on a specimen undergoing ecdysis; the 

 true identity of this species remains uncertain. 



In the key, two species have been included which are not illustrated. These 

 are E. mexicana Richardson, 1905, from the Gulf of Mexico, and E. delaneyi 



