THE ALOYONARIA OF PORTO RICO. 
279 
Spongodes portoricensis Hargitt, nov. species. Fig. B. 
The collection contained a single specimen of this genus, which, though somewhat fragmentary, 
is in general form and characteristics distinctively a Spongodes. While corresponding in many respects 
to several of Kukenthal’s species, the character and size of the spicules seem clearly to indicate a new 
species. And while the fragmentary condition 
of the specimen renders difficult any conclusive 
determination of this point, I am strongly con- 
vinced of its specific distinctness, and would 
propose the name portoricensis as signalizing 
both the place of its occurrence and the first 
record of a member of the genus from Atlantic 
waters, and specially from a West Indian habi- 
tat. Its occurrence here is particularly inter- 
esting in this last respect, as extending the 
range of the genus and at the same time locat- 
ing it in an environment in many ways similar 
to that of its Pacific relatives. 
Height of colony, or fragment, about 45 
mm. Color ( alcoholic ) , a somewhat dirty white. 
The specimen is densely spinose through- 
out, the spicules of relatively large size. In 
comparison with measurements of species of 
Kukenthal, Aicyonaceen vonTernate, and May, 
Alcyonaceen, .Tenaisch. Zeitsch., March, 1899, 
there are very few species indeed ranging as large 
as the present. Polyp spicules, 0.22-0.72 mm. 
long; polyp stalk, 1.68-2.05 mm.; upper stem, 
0.94-3 mm.; lower stem, 1.36-2.45 mm. 
Taken at station 6063, from a depth of 75 
to 76 fathoms by trawl. Bottom rocky, sand, 
and coral. The depth is greater than any of 
Kukenthal’s species, except rhodista, laxa, and 
collaris, taken at Kei Island from a depth of 140 
fathoms. 
Renilla reniformis (Cuvier). 
( Pennatula reniformis Pallas, 1766. R. americana La- 
marck, 1816. R. reniformis , Agass., 1850.) 
The collection contained but a single speci- 
men of this very common species. Renilla 
forms one of the highest of the Alcyonaria. 
It is a colonial organism, having the form of a 
reniform disk with a deep sinus at one side and borne upon a rather flexible peduncle, which is 
loosely attached to the sandy substratum upon which it grows. The polyps are arranged in a some- 
what radial manner over the upper surface of the disk, but project almost horizontally from its 
margin, where new polyps constantly bud out. 
Color of specimen (alcoholic), a dark purplish tint; polyps wh te. 
From Mavaguez Harbor. 
I 
Fig. B. — Spicules of Spongodes portoricensis, 
Solanderia nodulifera Hargitt, nov. species. Fig. C. 
( S'pongioderma ?) 
Of this genus two imperfect specimens were contained in the collection. The one here considered 
measured 125 mm. in height, somewhat arborescent, though sparingly branched. The main stem 
measured 5 to 6 mm. in diameter, the branches from 2.5 to 4 mm. 
