138 THE VOYAGE OF H.M.S. CHALLENGEE. 



Station 57. Off Bermuda. 690 fathoms. Two small dead specimens only. 



Station 45. Off New York, lat. 38° 34' N., long. 72° 10' W. 1240 fathoms. One 

 dead and broken specimen only. 



Station 142. Off the Cape of Good Hope, lat. 35° 4' S., long. 18° 37' E. 150 

 fathoms. One dead broken specimen only. 



Caryophyllia cylindracea, Reuss (?). 



Caryophyllia cylindracea, Duncan, "Porcupine" Madreporaria, part 1, p. 315, pL xl. figs. 5-8. 



A single much broken specimen obtained is possibly referable to the above species. 

 Station 33. Off Bermuda, 435 fathoms. 



Caryophyllia p>aucipalata, n. sp. (PI. I. figs. 3, 3a). 



Corallum conical and straight, attached by a somewhat broad base. Outer surface 

 smooth, but not glistening, without epitheca, but marked to its base by very fine and 

 delicate slightly sinuous costal ridges and striae. Calicle circular, septa very slightly 

 exsert. In the only perfect specimen the calicle is divided into ten equal major chambers, 

 which are each again divided by septa of two orders into four sub-chambers. There are 

 thus forty septa in all. There a?e five small rod-like pali only, and a central columella 

 closely like any one of the pali in structure and appearance. In another specimen, 

 perfect except that it has lost the columella and pali, a similar primary division of the 

 calicle into ten is plainly indicated, but two contiguous major chambers are larger than 

 the others, and each has two extra septa developed next to the major septa, which bound 

 their sides furthest from one another. An incomplete additional pair of major chambers 

 is thus formed, and an approach to hexradiate symmetry is made. It is remarkable that 

 in both specimens dredged together a marked arrangement in tens should be exhibited. 



Height of corallum 16 mm. and 12 mm. Diameters of calicles 10 mm. and 9 mm. 



Station 24. Off Culebra Island, Danish West Indies. 390 fathoms. Two specimens 

 only obtained. 



Caryophyllia p>rofunda, n. sp. (PI. I. figs. 6, 6a, 66). 



Corallum elongate, cylindrical, expanded gradually towards the calicular end, attached 

 by a stout and broad expanding and encrusting base. Surface towards the calicular 

 end glistening, very finely granulate towards the base, usually enveloped in an abundant, 

 dense, dull white epitheca. Costse fine, and little prominent, only the primary and 

 secondary forming projecting ridges, present only at the calicular end of the corallum, 

 obliterated beneath by epitheca. Calicle elliptical, with a deep fossa ; septa exsert, with 

 rounded margins, of four sizes, with well developed pali opposite the tertiaries. Septa 

 and pali very variable in number, but four septa always present to each palus. Out 

 of fifteen large specimens five have twenty-one pali, five twenty, two twenty-three, one 

 twenty-four, one nineteen, and one seventeen. 



