396 Verrill. Notes on Radiata. 



slender, distantly papillose. The longer double-spindles measure 

 •lOS'"'^ by -042'""^ -102 by '042, '096 by -036, -090 by '042, -084 by 

 •036 ; the stouter ones '084 by '048, -078 by -036, '072 by -042. 



Panama and Pearl Islands. — F. H. Bradley ; Panama, — J. H. Stern- 

 bergh ; Zorritos, Peru, — F. H. Bradley ; Acapulco, — A. Agassiz ; 

 (?) Cape St. Lucas, — J. Xantus ; San Salvador, — Capt. J. M. Dow ; 

 Corinto,— J. A. McNiel. 



The two very distinct colors assumed by this species are somewhat 

 remarkable and may serve to divide it conveniently into two varieties : 

 1st, the ordinary white form ; 2nd, the red variety. But as shown 

 above these colors may be found on a single specimen, and are not 

 accompanied by any other constant differences. The red variety is 

 possibly the form described as Ijophogorgia Panamensis by Du- 

 chassaing and Michelotti, but does not agree well with their figure. 



Their brief and very imperfect diagnosis is as follows : " Ramosa, 

 ramis distinctis sub-compressis, majoribus 4, minoribus 2 millimetris 

 latis, colore rubro. In insula Flamenco, prope Panama." 



All the specimens from Zorritos are of the red variety, and agree well 

 with those of Panama, except that they are mostly somewhat smaller 

 and more slender. 



The specimens from Acapulco and Cape St. Lucas differ considerably 

 in appearance from those of Panama. The bra' chlets are shorter and 

 thicker, length '2 to "5 of an inch, thickness '08, often somewhat clavate. 

 Cells nearly uniformly distributed on all sides of the branchlets, smaller 

 and less prominent, distinctly bilobed. Color deep red, some of the 

 spicula bright yellow. This may possibly prove to be a distinct spe- 

 cies when a good series can be examined. 



The specimens in the Museum of Comparative Zoology, formerly 

 described as Gorgonia Immilis, and supposed to have come from 

 Charleston, S. C, appear to be identical with specimens from Panama. 

 The former locality is probably altogether erroneous. 

 LeptOgorgia pnmila VerriU, sp. nov. (Litigorgia pumila, 1st Ed.). 



Plate V, figure 8. 



Corallum low, densely branched, imperfectly flabelliform, a few of 

 the branchlets coalescent, forming irregular, coarse reticulations. 

 Several crooked principal branches arise near the base and subdivide 

 in an irregularly pinnate manner, the branchlets being about a fourth 

 of an inch apart and from a fourth to one inch long. These are rather 

 thick, rounded, quadrangular, mostly curved, and spread at a wide 

 angle. The cells form small, rounded verruca?, which are but little 

 prominent and not crowded, alternating in two rows along each side 



