20 



io. Acanthogorgia striata new species. (Plate I, figs. 3, 3a; Plate XIX, fig. 2). 



Stat. 117. i° 0.5 N., i22°s6'E. North Celebes. 80 meters. Sand and coral. 

 Stat. 253. 5°4S'.2 S., I32°I3'E. Banda Sea. 304 nieters. Clay. 



Colony straggling in habit, subflabellate in form, giving off long and irregularly disposed 

 branches which themselves give forth irregularly disposed branchlets. Height 32 cm. In most 

 cases the terminal branches are free from branchlets for a considerable distance, and the central 

 stem is free from branches for its distal half. The calyces are rather closely approximated and 

 project ordinarily at a right angle from the stem. 



The individual calyces are columnar in form, and attain a height of about 3 mm. 



They are usually of about the same diameter throughout, being from 1 to 1.5 mm. in 

 diameter. The marginal points extent outward and upward, while within this crown of points 

 other spicules point toward the centre, and still others are curved over the retracted tentacles, 

 to which they are closely applied. 



Spicules. These are all slender spindles, curved or bent, but seldom assuming the 

 shape of a cupid's bow. The largest, which form the crown of points, are of the typical 

 acanthogorgian shape, the distal end being straight, smooth and sharp, with the basal part 

 much branched and tuberculate, and being bent at an angle with the distal part. The spindles 

 of the calycine walls are arranged en chevron. Those just below the tentacle bases are 

 almost horizontal in position. 



C o 1 o r. The polyps are Iight brown, with eight longitudinal stripes showing darker 

 brown, thus giving the name to the species. The axis is a rich golden brown with a distinct 

 lustre, and this shows through the ccenenchyma so that the stem and branches appear darker 

 than the polyps. 



This species is near Acanthogorgia horrida Studer, but the disposition of the calyx 

 spicules does not agree with his figure l . It also resembles Acanthogorgia aspcra Pourtalès, but 

 the calyces are considerably stouter, and the vertical markings quite prominent. 



11. Acanthiogorgia studeri new species. (Plate I, figs. 1, \a\ Plate XIX, fig. 3). 



Stat. 47. Bay of Bima. 55 meters. Mud with coral sand. 



Stat. 117. Kwandang Bay entrance, North Celebes. 80 meters. Sand and coral. 



Stat. 139. o°ii' S., I27°25' E. near Batjan Island. 397 meters. Stony. 



Stat. 274. 5°28'.2S., I34°53'.9E. Aru Islands. 57 meters. Sand and stones. 



Colony (incomplete) flabellate in form, the branches anastomosing to a limited degree. 

 The height is about 12 cm. The main stem is unbranched for 3 cm., where it divides into 

 two main portions, each of which subdivides into rather numerous branches and branchlets, the 

 latter anastomosing in places forming a rude reticulation. 



The calyces are rather thickly distributed on all sides of the stem and branches, and 

 show a tendency toward a disposition in spirals; but this is not at all constant. They are usually 



Studer. Alcyonaires provenaat des Campagnes de l'Hiiondelle, 1901, Plate VII, fig. 2. 



