168 Part III. — Sixteenth Annual Report 



named species, but there are several other records of Cumaceans under 

 the more general names of Cumacea, Cuma, etc., which I shall now refer to. 



The records of Cumaceans under these general names are as follows : — 

 In 1890 the first is for Station Y. in March ; in April there are records 

 for Stations III., VIII., and IX., and for Station VIII. in December. 

 In 1891 the records are — one for Station VIII. in February, for Station 

 I. in March, for Station VIII. in April, and for Station III. in 

 November. In 1892 there is a record for Station VIII. in March, for 

 Station IX. in May, for Stations V. and IX. in July, for Station VIII. 

 in September, and for Station IX. in December. In 1893 there are 

 four records of Cumacea — viz., two in June for Stations I. and V., one in 

 August for Station V., and one in October for Station IX. The only 

 records in 1894 are — one for Station V. in February, and another for 

 Station IX. in the same month. There are five records in 1895, one for 

 Station IV. in February, one for Stations III., VIII., and IX in 

 February, and one for Station VIII. in December. 



There does not appear to be any feature of special interest in the 

 distribution of the Cumacea as brought out by the published records, 

 except that a few of the species are rare or new in the British seas. 



(d) Isopoda. 



The next group of organisms that fall to be noticed is the Isopoda. 

 This group is represented in the tow-net lists by six species, the names of 

 which are as follow : — 



Gnathia (?) maxillaris (M. Edw.). Idothea emarginata (Fabr.). 

 Eurydice pulchra, Leach. „ linearis (Linn.). 



Idothea baltica (Pallas). Janira maculosa, Leach. 



With the exception of Idothea baltica, these Isopods were all 

 extremely rare in the tow-net gatherings under consideration, and the 

 records for them are as under : — 



Gnathia (?) maxillaris is recorded once in 1890, for Station VIII. in 

 March. 



Eurydice pulchra is recorded in the same year for Station III, in 

 November. 



Idothea baltica is recorded in 1889 for Station VIII. in February, and 

 for Station IX. in January. In 1890 the same species is recorded in 

 April for Stations IV. and V., and again for Station V. in October. In 

 1891 it is recorded for Station I. in January and April, and for Station 

 IV. in March. It is recorded again for Station IV. in May 1892. In 

 1893 it is recorded in February for Station III., and in November for 

 Stations I. and IV. In 1894 there is one record — viz., for Station IV. in 

 April. In 1895 thislsopod is recorded in April for Stations I., III., IV., 

 V., and VIII. , and for Station V. in September. It will be seen that nine 

 out of the nineteen records of Idothea baltica, or fully 47 per cent., are 

 for the month of April ; and it has also further to be noted that, curiously 

 enough, the whole number of the records, with only a single exception, 

 are from surface tow-net gatherings. 



