558 Verrill, Notes on Radiata. 



The spicula are white and smaller than in the other species of the 

 oenus. The most conspicuous are roughly warted spindles and double- 

 spindles, varying from long slender acute forms to stout, blunt, and 

 irregular ones. With these are many rough irregular crosses and 

 irregularly branched spicula. The crooked spicula from the verruca 

 are long and quite slender, acute, variously curved, often bow-shaped, 

 covered with small distant warts. The polyp-spicula are smaller and 

 straighter, with fewer warts. The larger spindles and double-spindles 

 measure -336™"^ by -096""", '336 by -072, -288 by -084, -264 by -108, -264 

 by -084, -264 by -072, -202 by -060, -240 by -090, '240 by •072, -240 by 

 •060, -228 by -096, -228 by -072, '222 by '108, '222 by -102, -216 by 078, 

 •192 by -072; the crosses '144 by ^108, ^108 by -084; the long curved 

 spicula -432 by -042, •360 by ^042, -360 by -036, -336 by -030, '312 by 

 •030, ^244 by -030. 



La Paz, on shell with Eugorgia noMlis, var. excelsa, in 6 to 8 fath- 

 oms, one specimen, — J. Pedersen. 



No. 7. — On the Geographical IHstribution of the Polyps of the ^Vest 

 Coast of America. 



In the preceding article 1 have included all the species hitherto 

 described by others from the west coast of America, as well as those 

 examined by myself. It is certain, however, that many additional 

 species remain to be discovered. The tro23ical region or Panamian 

 province, extending from Cape Blanco, Peru, to Lower California, and 

 including the Gulf of California, is the only portion of the coast 

 from which even tolerablj^ complete collections have been made, and 

 yet in that great region only the littoral and shallow water species 

 have been collected. Doubtless many new and interesting forms will 

 hereafter be discovered in the deeper waters and on the submerged 

 banks off the coast. 



Concerning the polyp-fauna of the coast of Lower California, we 

 know almost nothing. From the coast farther northward a few small 

 collections have been brought, and the lists of species from those 

 regions are certainly very imperfect. From the coasts of Peru and 

 Chili a greater number of species, mostly Actinians, have been de- 

 scribed, but many of these need reexamination from living specimens, 

 and many others doubtless remain undescribed. The poly})S of the 

 Araucanian and Galapagos provinces are entirely unknown. From 

 the Fuegian region several species of Actinians were described in the 



