BARBADOS-ANTIGUA REPORTS 53 
ment of smaller plates. Anus probably present, but not yet 
observed. ”’ 
Speaking of the first specimen acquired by Sir Rawson Raw- 
son, he states that it was placed by him in the hands of Prof. 
Louis Agassiz during the stay of the ‘‘Hassler’’ at Barbados in 
1872. Prof. Agassiz intended to publish a full description of 
the specimen, but was prevented from doing so by failing health, 
and after his death the figures which he had prepared were 
published by Mr. Alexander Agassiz, together with a short de- 
seriptive note by Count Pourtalés. He says that this specimen 
was subsequently entrusted by Sir Rawson Rawson to Sir 
Wyville Thomson, together with two others which he had ob- 
tained in 1876 after the publication of Pourtalés’ notice of the 
first one. 
He says that the second of the specimens mentioned by Sir 
Wyville Thomson seems to have been the original specimen. de- 
scribed by Pourtalés, from which the oral plates had dropped 
away; and as it was gradually falling to pieces from natural 
decay Sir Rawson Rawson allowed it to be dissected. The 
figures on plate 3 of the ‘‘Challenger’’ report, with the excep- 
tion of fig. 2, and figs. 1-4 on plate 5, show the results of this 
process. Fig. 2 on plate 3 is a slightly idealized view of the 
interior of the cup so as to show the oral plates of the large 
specimen represented in plate 2. This was supposed by Sir 
John Murray to belong to Sir Rawson Rawson, and Carpenter 
says that as it corresponded to the first specimen on Sir Wy- 
ville’s list he imagined this to be the case; but Sir Rawson 
Rawson did not recognize it as his, and Carpenter, therefore, 
concluded that it is the mutilated dry specimen which Pro- 
fessor Agassiz told him was sent by him to Sir Wyville with 
permission to cut it up for details. In like manner Sir Rawson 
Rawson: thought it possible that the original of plate 4 might 
be his young specimen mentioned by Sir Wyville as only about 
8 mm. in height, but as Professor Agassiz told Carpenter that 
he also sent Sir Wyville a small individual, Carpenter believed 
that two specimens had somehow been mislaid. The specimen 
which was shown at the Philadelphia Exhibition, and was sub- 
sequently bought by the Museum of Comparative Zoology, was 
the original of plate 1 of the ‘‘Challenger’’ report. It was ob- 
