20 A.GASSIZIA SCROBICULATA, 



the earlier stages known of other Spatangoids, when the test is mure or 

 less cylindrical. Quite a good series of specimens of Agassizia was dredged 

 at Barbadoes, and in Lat. 37 , South ; Long. 56°, West. The smallest speci- 

 mens were nearly as small as the presumed Agassizia of PI. XI V., but 



agreed SO entirely, except in size, with the larger specimens of Agassizia 

 figured on PI X/'.f. .>.:. .>;. Rev. Ech., that I am convinced the figure of the 

 presumed Agassizia [I'l. XIV. f. 0-1:.') is the young of some unknown 

 Spatangoid. 



In the smallest specimen the course of the 1'ascioles was identical with 

 that of the older specimens ; the outline of the test from above and in pro- 

 file did not differ materially from that of the larger specimens; the test was 

 somewhat less gibbous, and the posterior lateral ambulacra shorter, scarcely 

 a quarter the length of the lateral anterior ambulacra. As in young l>ris- 

 sopsis the; suckers of the odd ambulacrum, within the fasciole, early attain a 

 very large size 

 Off Barbadoes, 100 fathoms. Lat. a: 42', South ; Long. 5G° 20', West M fathoms. 



Agassizia scrobiculata 



! Agassizia scrobiculata Vw... 1846, Voyage Wtuis. 



Fragments of this species from Juan Fernandez in 220 fathoms. From the 

 same spot imperfect specimens of a species of Brissopsis, remarkable for its 

 elongated, narrow anal fasciole. which is very distinct and continuous from 

 the subanal plastron to the peripetalous fasciole. thus differing strikingly 



from the ana] fasciole of Brissopsis lyril'era. 



Hemiaster Philippii 



! Abatut Philippii I.ovi's MS. 



! Hemiaster Philippii A. A..., 1878, Boll M C. X . III. No. s, p. 189. 



PLIV.f. i 8. 



I owe to Professor Lovln a specimen of this species, collected by Kinberg 

 off La Plata. It was not included in the Synonym} of the Revision, thinking 

 Professor Loven would soon describe it with other material he had in hand 

 at the time of my visit to Stockholm. Although Loven onlj possessed a few 

 quite young specimens, intermediate between tin' Btngesof PI. IV. f. 7,8 t 



yet, with his usual acumen, he correctly distinguished this specie- from its 



close allj . I temi aster Australia 



A remarkably line series of Hemiaster Philippii was collected by the 



