286 University of California Publications in Zoology. [Vol. 4 



covered with large pores. Orifice large, semi-circular above, low- 

 er margin with a shallow sinus somewhat extended in front ; sur- 

 rounded by a thickened peristome. Avicularia none. Ooecimn 

 unknown. 



The orifice of this species is considerably larger than that of 

 the typical Schizoporella, but the pos.session of a decided sinus 

 on the lower margin places it with this genus. This species was 

 originally described by Busk from the Straits of ]\Iagellan ob- 

 tained at a depth of 10 to 20 fathoms. The specimen from which 

 this identification is made consists of a small piece of a colony 

 which was dredged on the west coast of the island of Santa Cata- 

 lina, depth not known, probably scraped off of a rocky wall as 

 the dredge came up. 



54. Schizoporella auriculata (Hassall) Hincks. 



PI. 19, fig. 39. 



Lepralia auriculata Hassall, 1842, vol. 9, p. 412. 

 Lepralia auriculata, Johnston, 1847, eel. 2, p. 310, pi. 54, fig. 8. 

 Lepralia auriculata, Busk, 1854, pt. 2, p. 67, pi. 89, figs. 4-6. 

 Schizoporella auriculata, Hincks, 1880, p. 260, pi. 29, figs. 3-9. 



Zoarium incrusting. Zocecia rhomboid, sometimes sub-ovate, 

 short, disposed in linear series, radiating from a central point ; 

 separated by distinct lines ; front wall punctured. Orifice small, 

 suborbicular, rounded above, with a definite rather narrow sinus 

 on the lower margin. Spines? A small avicularium (pi. 19, 

 fig. 39) with rounded mandible immediately below the sinus on a 

 slight mamillary eminence. Ocecia subglobose, immersed, punc- 

 tured. 



This species was obtained in small quantity off the Coronado 

 Islands dredged in 99.5 fathoms. 



55. Schizoporella auriculata subsp. ochracea Hincks. 



PI. 19, fig. 40. 



Lepralia ochracea Hincks, 1861, vol. 9, p. 206, pi. 12, fig. 3. 

 Schizoporella auriculata, var. ochracea Hincks, 1880, p. 260, pi. 

 29, fig. 7. 



Zoarium incrusting. Zocecia rhomboid, disposed in linear 

 series, radiating from a central point ; separated by distinct lines ; 



