370 Verrill, Notes on Radiata. 



Common on all rocky shores and reefs along the Brazilian coast. At Rio, Victoria, 

 Bahia, and elsewhere, where the rocks are gneissose, these sea urchins are found in 

 holes in the rocks, which they excavate for themselves. They also excavate the coral 

 reef-rock, and sandstone. — c. f. h. 



Encope emarginata (Leske sp.) Agassiz, Monog. Scut., ii, p. 37, tab. 10. 



Scutella emarginata Lamarck ; Blainv. ; Desmoul., etc. 

 Echinoglycus frondosus Gray, Catal. Ech. of Brit. Mus., p. 24, 1855. 



The specimens are mostly 3 or 4 inches in diameter, with thin edges. 

 The openings vary considerably in size and the degree of closing at 

 the margin. In most cases all are closed, but often the two posterior 

 remain more or less open. The green and brown colored specimens 

 are about e(pially common. 



Very common on the sandy beaches in some localities along the coast from Rio, 

 northward to beyond Bahia. One of these localities near the mouth of tlie Rio Saut- 

 Antonia, in the Province of Bahia, is mentioned in the work of Prinz Max zu Neu 

 Wied. Along the shores of the bay of Bahia, at Itapagipe, Peiiperi, and elsewhere, it 

 may be collected in great abundance. — c. f. h. 



Order, HOLOTHURIOIDEA. 



Thy one (Sclerodactyla) Braziliensis Verriii, sp. nov. 

 Plate IV, figure H=\ 



Foi-m in contraction oval. The lower side indicated only by the 

 lighter color. Suckers not very numerous, scattered ovei' the whole 

 surf ice, but somewhat more numerous along the anibulacral zones, 

 where there is a tendency to form two rows. Anal orifice armed with 

 five small, calcareous papilhe. Tentacles ten, elongated, arborescently 

 branched, chiefly near the end, the divisions short and not very nu- 

 merous ; the two lower tentacles slightly smaller and more divided. 

 Plates of the oral circle closely united laterally, forming a very short 

 ring, with ten acute points projecting backward and ten forwai-d, the 

 latter with wide rounded spaces l)etween them. Distance between 

 the anterior points -1 inch, ecjual to their length and to the distance 

 from the posterior points to the angle between the antei'ior points. 

 Tentacles somewhat rigid, from the .abundance of calcareous plates. 

 Color, in alcohol, yellowish gray, with fine brownish s[)ots and an 

 ill-deflned dark brown zone along the middle of the interainbulacral 

 spaces. Length of a contracted specimen, in alcohol, 1 "3 inches; of 

 tentacles 4. Abrolhos Reefs, — C. F. Hartt. 



This species is allied to 7! I>ri(freu.s\ from the Atlantic coast of the 

 United States, but is very distinct in the form of the ring of oral 

 plate, which, in the latter, is relatively about three times longer, and 



