On the Nidus and Young o/ Pontobdella muricata. 199 
with Dr M'Bain, dredged up the nests of Pontobdella in the 
Firth of Forth. Sir J. Dalzell had figured these nests and 
the young in his " Powers of the Creator,'' vol. ii. plate 1, 
and well described them in that work. Referring to Mr 
Peach's description of the Nidus of Numertes gracilis^ Dr 
Wright stated that the nests of several annelides might be 
found in the pools near Seafield, the eggs of which had been 
hatched under his care, and he described the progress of 
development in the embryo. He stated that at one stage the 
embryo of the annelid exactly resembled that of Cydippe 
po7niformis, formerly described by him to the Society. 
IV. — Notice of SnaJces and Lizards from Old Calabar. By George 
Logan, Esq., W.S. 
During the year 1857, the missionaries in Old Calabar 
connected with the United Presbyterian Church in Scotland, 
transmitted to some of the Fellows of the Royal Physical 
Society a considerable number of specimens of snakes and 
lizards, and of other interesting objects in various departments 
of natural history. Of the reptiles a portion were sent to 
Dr J. E. Gray, of the Zoological Section of the British 
Museum, with a request that he would examine and name 
them, that they might be described and submitted to this 
Society ; and if there were any duplicates among them which 
would be of service to the Museum, they might be retained. 
Dr Gray acknowledged receipt of the specimens transmitted 
to him, but he seems to have overlooked or forgotten the 
conditions attached to their transmission, as in the spring of 
last year (1859) he, upon personal application at the Museum, 
only returned six of them named, without any notice of the 
remainder. He was then written to, reminding him of the 
terms upon which the reptiles were sent to him, and that it 
was desirable that a list and description of them should be 
submitted to this Society, but no answer was received to 
this communication. The British Museum Catalogue, and 
the Proceedings of the Zoological Society of London, have 
furnished, however, to some extent the information awanting. 
The following notice by Dr Gray appears in these Proceedings, 
Part xxii., March 1858, page 154: — "Mr Logan kindly 
