NOTES ON ZOOLOGICAL INSTITUTIONS. 339 



Scorpcenidce (very many individuals of Scorpcena porcus), two 

 Triglidcs, one Trachinidcs, one Uranoscopidce, one Blennidce, one 

 Balistidce, one Scyllidce, one (?) Carchariidce, one Raiidcs, and one 



Special attention may be called to the families Sparidce and 

 Balistidcs : among the Sparidce to some large specimens of the 

 Gilt-head {Pagrus auratus) and of the Pandora {Pagellus ery- 

 thrinus) in Tank No. 5, and to the fact that a Sea Bream {Can- 

 tharus vulgaris) has lived live years in captivity here (see ' Guide 

 pour I'Aquarium,' Naples, 1908, page 101). 



I saw five individuals of the File Fish {Balistes capriscus) in 

 Tank No. 8 ; these formed a most interesting exhibit, and, 

 speaking personally, I considered that even if there had been 

 nothing else to see in Naples it was well worth while to have 

 gone there only to have seen these curious and attractive fish 

 alive and in, apparently, good health, but I was sorry to learn 

 that they do not live long in captivity. The ' Official Guide ' 

 (edition of 1908, page 101), says of the File Fish :— " C'est un 

 poisson vif, curieux et bon camarade ; il ne jouit de toutes ses 

 facultes qu'en ete, parce qu'il est tres sensible au froid et meurt 

 generalement au commencement de I'hiver. Sa nourriture 

 consiste en mollusques et en crustaces ; il les broie de ses dents 

 puissantes ; on pent entendre le bruit de ce travail a travers les 

 vitres du reservoir." 



I am very glad to hear now (March, 1911) from a worker of 

 the Naples Zoological Station who is visiting our Nile Aquarium 

 at Gezira, that they are proposing to heat the tanks in the 

 Naples Aquarium ; so that such interesting forms of life as 

 Balistes may have longer careers in captivity there. 



Cbphalochordates. — Specimens of the Lancelet or Amphi- 

 oxus {Branchiostoma lanceolatum) . 



TuNiCATES — Five species of Ascidians, including Phallusia 

 mammillata, the red Cynthia papillosa, and very many individuals 

 of the white, translucent Ciona intesti7ialis. 



Invertebrates. — The Naples Aquarium is particularly rich in 

 invertebrate animals, and of the very many interesting live 

 things to be seen there I will only mention those I particularly 

 noted at the time of my last visit. 



Among the Arthropods there were two fair-sized individuals 



2i)2 



