388 Annals of the South African Museum. 



bique is not unlikely but needs confirmation. The occurrence south 

 of there seems unlikely. Mr. Agassi z's figures are of an Hawaiian 

 Island specimen, which is now regarded as specifically distinct from 

 the one found in the East Indies and Indian Ocean. 



PARACENTROTUS AGULHENSIS. 



Doderlein, 1905. Zool. Anz., vol. 28, p. 623. 1906, VALDIVIA Ech., 

 p. 207; pis. XXVII, figs. 1-4; XXXV, fig. 17; XLVII, fig. 1. 



The PIETER FAURE specimens are all small but agree very well 

 with a cotype in the M. C. Z. collection. They measure 6-22 mm. 

 in horizontal diameter and only 2-75-9 mm. in height. They are 

 uniformly whitish or light yellowish in colour. In the smallest 

 specimen the ambulacra! plates, actinally and at midzone contain 

 only three elements, while abactinally they are perfectly simple; 

 the specimen is thus an Echinus, a most interesting growth-stage! 

 The PIETER FAURE specimens are all from the abyssal region, while 

 the VALDIVIA specimens were taken in much shallower water. 



P.F. 17215. Cape Point, Cape Colony, N. 77 E., distant?, 660- 

 700 fms. Gn. m. 3 specimens; adult and young. 



P.F. 17269. Cape Point, E. 3 / 4 N., 42 miles, 930 fms. Gn. in. 

 4 specimens; young. 



P.F. 17351. Cape Point, N. 83 E., 43 miles, 900-1000 fms. Grey 

 m. 2 specimens; young. 



PARACENTROTUS GRANDIS, sp. nov. 

 Plate XXII. 



Test 78 mm. in diameter and 48 mm, high; height therefore 

 about -62 h. d. Coronal plates 18 or 19 in each column, all (or 

 rarely, all but the uppermost) with primary tubercles and spines; 

 interambulacral areas in midzone about 31 mm. wide; primary 

 tubercles large, with shallow but sharply defined areolae, the dia- 

 meter of which about equals height of plate. Ambulacral plates 

 21 or 22, the uppermost very rarely without a primary tubercle; 

 ambulacra about 18 mm. wide in midzone, the interporiferous area 

 about 10 mm.; poriferous areas not very narrow, the arcs of 4 large 

 pore-pairs distinctly curved and not very near the outer margin of 

 the plate; primary tubercles of ambulacra relatively large and con- 

 spicuous without crenulation or perforation, of course; their areolae 

 ill-defined, shallow and small, the diameter about -60--80 of height 

 of plate. Abactinal system 16'5 mm. across; oculars rather small, 



