392 Verrill, Notes on Radiata. 



its opposite ends of these two colors. Longer double-spindles with 

 slender and acute ends, the warts rough and not very close, though 

 more so than in L. exiinia V. ; the warts nearest the narrow median 

 space are considerably largest. The stouter ones are much smaller, 

 and also acute. Polyp-spicula light amber, very slender. With the 

 larger spicula are many small, short ones, with only a single wreath of 

 warts at each end. 



The longer spicula are -156""" by -036, -156 by '048, -120 by -036, 

 •132 by -042 ; stouter ones -096 by -048, -072 by -036; the smaller 

 •048 by -024. 



Panama, — C. B. Adams, J. H. Sternbergh, F. H. Bradley ; Pearl 

 Islands, 6 to 8 fathoms by divers, large ; and Zorritos, Peru, — F. H. 

 Bradley ; Punta Arenas and Corinto, Nic, — J. A. McNiel. 



This is, when well grown and perfect, a very elegant and beautiful 

 species. The reticulations are of about the same size as those of L. 

 Agassizii, but the branchlets are more slender and the cells smaller. 

 The character of the midribs is also different, but the best characters 

 for distinguishing them are found in the forms and structure of the 

 spicula, Avhich are very different in the two species. It has some re- 

 semblance in form and color to Pterogorgia flahelluni of the West In- 

 dies, but the spicula separate them generically. 



I have dedicated this to the memory of the lamented Prof. C B. 

 Adams, who was, perhaps, the first to bring it to tliis country. His 

 specimens are in the museum of Amherst College. 



Leptogorgia rutila Verrill (Litigorgia Adamsh, var. rutila, 1st Ed.). 

 RMpidogorgia Agas^izii {pars)YQTY\\\, op. cit, p. 32. 

 Plate VI, figure 5. 



The specimens from Acapulco are bright light red in color (between 

 minium and vermillion) and differ in several other respects. The 

 branches are not so slender and the reticulations are smaller and more 

 regiilar, the cells also are more crowded, prominent, and distinctly 

 bilobed. In these external characters it resembles L. Agassizii, but 

 the cells are not quite so large and the branchlets more slender. The 

 axis is amber-color and translucent in the branches. 



The spicula are mostly light red, variable in size and shape, mostly 

 rather slender. Long double-spindles rather slender and acute, with a 

 wide median space ; each end has three or four whorls of warts, those 

 next to the median space considerably largest, the others diminishing 

 to the ends. Stouter double-spindles about as thick but shorter, blunt, 

 mostly with but two whorls at each end, the inner ones much the 



