MUSEUM OF COMPARATIVE ZOOLOGY. J 11 



showing but a slight thickening of one of the septa, while in others as many as 

 five septa are swelled out, forming a protuberance equal to the diameter of the 

 calicle. 



As the columella is absent or extremely rudimentary, this coral is placed 

 provisorily in the genus Stereopsammia, though it differs considerably from 

 the typical species. 



Dendrophyllia 'profunda Pourt. ought to be placed in the same genus. 

 'Stereopsammia rostrata is one of the largest West-Indian deep-sea corals; 

 some of the stocks when entire must have been an inch thick and a foot high. 



Range from 164 to 580 fathoms, in three stations, off Santa Cruz, St. Lucia, 

 and Grenada. 



Dendrophyllia Goesi Lindstr. 



Like Mr. Lindstrom's specimens, ours are simple, like Balanophyllia ; one of 

 them shows two buds on its sides. As Lindstrom remarks, it is difficult to 

 draw the line between Balanophyllia and Dendrophyllia. In the case of 

 Dendrophyllia cornucopia, for instance, we have in the collection large specimens 

 without any tendency to bud, which if known alone would certainly be 

 classed with Balanophyllia. 



From 250 to 400 fathoms, off Havana. 



Dendrophyllia alternata Pourt. n. sp. 



Plate II. Figs. 3 and 4. 



Corallum branching more or less in a plane ; calicles on the sides, alternate. 

 Coenenchyma striated, finely and sharply granulated, feeling rough to the 

 touch. Calicles prominent, and somewhat expanded at the border. Costae 

 very rough, spines perforated, but not very distinct near the calicle, at a little 

 distance from which they merge into the strife of the stem. Septa thickened 

 and rough on the edge of the calicle, coarsely granulated on the sides, often 

 bent and warped. Four cycles, six unequal systems, the fourth cycle being 

 unequally developed. The primaries are slightly thicker, and more exsert 

 than the others. Fossa rather deep ; columella small, but very compact, and 

 projecting from bottom of fossa, formed of four or five combined parts. 



The largest branch is 10 cm. high, 12 mm. in diameter at thickest part ; it 

 seems to have been part of a still larger branch. Calicles 5 mm. in diameter. 



This species is allied to D. ramea, but is smaller, and has no terminal 

 calicles different from the lateral ones. 



Range from 150 to 189 fathoms, in three stations, off Guadeloupe, Martinique, 

 and St. Lucia. 



Dendrophyllia cornucopia Pourt. 



Range from 73 to 400 fathoms, in five stations, off Havana, Grenada, and 

 Barbados. 



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