of the Fishery Board for Scotland, 



251 



observed, comprising 10 species of Copepoda, 8 species of Cladocera, and 

 8 species of Ostracoda, while a Gammarus (G. dueheni) was also obtained 

 here. One of the Copepods from Tangy Loch is Canthocamptus 

 hirticornis, T. Scott, a species not hitherto observed in the Campbel- 

 town district. A few molluscs, insects, and statoblasts of Cristatella, as 

 well as some other forms, were also observed in the gatherings. 



In referring to the statoblasts of Cristatella, it seems necessary to draw 

 attention to the fact that the number of marginal spines varies consider- 

 ably in different specimens. Exception has been taken to my figure in 

 Part III. of the Fourteenth Annual Report because the number of spines 

 shown there is considerably greater than is represented in Professor 

 Allman's figures of the same objects in his valuable ' Monograph of the 

 Fresh- water Polyzoa.' Whatever be the reason of the difi'erence, the 

 number of spines shown in my figure is the number on the specimen I 

 have given a representation of. 



This completes the description of the lochs coming under the first 

 division of this paper, and I now append a Table showing the number 

 and distribution of Crustacea from the lochs referred to, as. it is desirable, 

 for the sake of continuity, to reserve the second division for the descrip- 

 tion only of the lochs of Shetland. 



In concluding this part of my paper on the fauna of inland waters, I 

 desire to state that my successful examination of the lochs about Camp- 

 beltown is due in gTeat measure to the kind assistance afi'orded me by 

 Mr. Alexander Gray and other friends residing there. 



TABLE containing the Names and showing^the Distribution of all the 

 Species from the Lochs referred to in the preceding Notes. 



Names of the Species. 



Lochs in the 

 vicinity of Camp- 

 beltown, Cantyre. 



Loch on 

 Ailsa 

 Craig. 



Loch in 

 Island of 

 Arran. 



Park 

 Loch. 



Tangy 

 Loch. 



Garry 

 Loch. 



Loch n'r 

 Loch- 

 ranza. 



MOLLUSCA. 











Planorbis nautileus (Linne), 



,, alhus, Miiller, .... 

 Limncea peregra (Miiller), 

 Ancylusjiuviatilis, Miiller, 





X 

 X 

 X 

 X 

 X 







CKUSTACEA. 

 Amphipoda. 

 Gammarn.t dueheni, Lilljehorg, 



X 



X 







Copepoda. 











Dia/ptomus hircus, Brady, 

 Cyclops strenuus, Fischer, 



„ vemalis, Fischer, 



„ bisetosus, Rehberg, 



viridis (Jurine), .... 



„ (?) bicolor, G. 0. Sars, 



„ Juscus (Jurine), .... 



,, alhidus (JuriPxe), .... 



,, serndatus, Fischer, 



,, fimhriatus, Fischer, 



i 



X X X X X X X 



XXX X XXX 



X 



X 



