43 



Tltouarella moseleyi. Var. njtii-ii/n, n. 



3. Operculum bluntly conical. 3. Operculum forms a high cone. 



4. Axis smooth. 4. Axis markedly rid-jed. 



5. Axis flexible. 5. Axis only slightly flexible. 



G. Pre-opercular scales not spined. 6. Pre - opercular scales with strong 



spines, which may be bifid. 



Locality : Laccadive Sea ; 703 fathoms. 



The typical T. moseleyi was recorded from off Kermadec Islands. 



Caligorgia flabellum, Ehreuberg. 



This well-known species is represented by several large specimens. 



We need only note that there is considerable diversity in the closeness of the 

 whorls of polyps to one another, and in the number of polyps in a whorl. We 

 counted 4, 5, 6, and 8. 



Locality : Station 333 ; 6 37' N. ; 79 38f E. ; 401 fathoms. 



Previously recorded from near Mauritius, East Indian Archipelago, Japan, 

 East Pacific off Central America. 



Caligorgia indica, n. sp. 



This species from the Andaman Islands is represented by a fragment of a 

 colony, 112 mm. in length and 20 mm. in breadth. It is closely allied to 

 C. similis, Versluys, and to C. versluysi, Thomson and Henderson. 



The axis is iridescent, and marked by a number of longitudinal grooves 

 and ridges. It has a diameter of 1 mm. at its lower end, and gradually dwindles 

 until it becomes thread-like at the tip. 



We are greatly indebted to Dr. J. Versluys for generously placing at our 

 disposal the following notes on this species : 



" The primnoid in Professor Alcock's collection differs from Primnoa ellisii, 

 von Koch ( = Caligorgia verticillata, Pallas 1 ) in several noteworthy details, as 

 shown in the following table : 



Character of Alcock's Species. Characters of Caligorgia rerticillata, Pallas. 



a. Dichotomously branched. a. Pinnately branched. 



b. On the thinner twigs the polyps are l>. On the thinner twigs the polyps are 



arranged in whorls of 2, less fre- arranged in whorls of 3, very seldom 



quently 3. 2 of 2 ; on the thicker branches the 



whorls mostly contain 4 polyps. 



1 For more particulars see my memoir on the I'riinnoidcu in the monographs of the Siboga 

 Expedition. No. xiii. a (1906). J. V. 



' 2 On the tliii-ki'r branches whorls of three were most frequent. J. A. T. 



