554 .-1. E. Verrill — Anthozoa and Hydrozoa of the Bermudas. 



Columella solid, rather prominent, convex, circular or elliptical. 

 Diameter of coral about 9 inches (225™™); of calicles, 2.6'"™ to 3™™. 

 A single specimen of this fine species was collected at Bermuda by 

 Mr. G. Brown Goode, in 1876. 



Madracis decaciis (Lyman, 1857), Verrill, 18G4. 



This species often grows in irregular masses composed of rounded 

 nodules, easily broken apart. Although the coral has but ten equal 

 septa, the animal has 20 regular but obtuse tentacles, in two cycles, 

 differing a little in size and position (PI. Ixvii, fig. 10). The color, 

 iu life, is light orange-yellow or ochre-color. It is not rare, 



Siderastrcea siderea (Ellis and Sol.) Blainv. 



This is very common in shallow water, both on the reefs and in 

 the sounds, and it often grows in places where no other corals grow, 

 owing to the turbidity of the water. It sometimes forms hemis- 

 pheres over a foot across. 



The figures of the polyps of this genus given by Agassiz (Florida 

 Reefs) are not correct in representing the tentacles as three-lobed. 

 They are simple, short, clavate or subcapitate, those of the different 

 cycles quite unequal ; a pair of small ones, each side of the base of a 

 larger one, gave rise to the error in the figures drawn for Agassiz. 



Figures of the animals of this and many of the other corals have 

 been made for the final report on our Bermuda collection. 



ACTINARIA. 



A valuable paper on the Bermuda actinians was published by 

 Prof. J. P. McMurrich in 1888-1887, with studies of the internal 

 structure of most of the species. His list included five actinians* 

 and five ZoanthidiB, One or two additional species were recorded 

 from the Challenger Expedition. f 



* Proc. Acad. Nat. Sci., Philad., 1888, and reprinted ia Beilprin's The Bermuda 

 Islands, pp. 105-135, pi. 10, 11, 1889. Of the species enumerated " Aiptasia sp." is 

 probably A. tagetes ; Oulactis fasciculata is Asteractis floscuUfera (Les.) Verrill, Amer. 

 Journ. Sci., vii, p. 45, 1899 {non McMur.); Phymactis cruct/er is Epicystis crucifera 

 (Les.) Ehr. ; Verrill, op. cit., vi, p. 496, 1898. The latter is a very large, handsome, 

 pink and white species, with thickened, white transverse ridges on the inner side of 

 the tentacles. It lives deeply buried in the crevices of the reefs. 



f Ilyanthopsis longifilis Hertw., Rep. Zool. Voy. Challenger, xxvi, p. 13, pi. ii, fig. 

 12, was described from the Bermuda reefs. 



It is shaped like Aiptasia, with a smooth column and collar: no acontia ; 160 long 

 tentacles and the same number of perfect mesenteries ; a pedal disk ; no sphincter 

 muscle. Evidently allied to Anthea or Anemonia. 



