of the Fishery Board for Scotland. 157 



November. In 1894 there are three records, one in February for Station 

 IX., and in August one each for Stations I. and III. In 1895 there are 

 six records, one in February for Stations III., IV., V., and VIII., and one 

 in September for Stations VIII. and IX., or twenty-one records in all for 

 this species of Crangon. Nine (or nearly 43 per cent.) of the records 

 are for February alone, and if those for January and November are 

 included they amount to two-thirds of the whole number, the other 

 records being divided almost equally among the three months March, 

 August, and September. 



Egeon {Crangon) fasciatus is only recorded once during the seven 

 years — viz., for Station III. in September 1891. 



Clieraphilus {Crangon) nanus. There are several records of this species 

 during the prescribed period. Three of these occur in 1891, one in March 

 for Station I. and one in the same month for Station V. The third 

 record occurs in September for Station III. In 1892 there are four 

 records, two for Station I. in January and March, one for Station III. in 

 February, and one for Station V. in January. There is one in February 

 1894 for Station III., and one' in the same month of 1895 for Station 

 VIII. , or nine records in all for Clieraphilus nanus, and, with the excep- 

 tion of the one in September for Station III., they all occur in the colder 

 months. 



Hippolyte varians. There is but one record of this species — viz., in 

 December 1890 for Station V. 



Hippolyte fascigera. This species is recorded for Station VIII. in 

 January 1894, and in February 1895 for the same station. 



Spirontocaris {Hippolyte) pusiola is recorded only once — viz., in 

 February 1895 for Station IV. 



Pandalus montagui {= P. annulicornis of Bell's Stalk-eyed Crustacea). 

 The number of records for this species is seven, one for Station VIII. in 

 February 1890 ; one in September 1891 for Station III. In 1892 there 

 is one record in January for Station I. and also for Station V., and one 

 in February for Station III. In 1893 there is one for Station V. in 

 November, and one in February 1895 for Station VIII. 



Pandalus brevirostris. For this species there are two records, and both 

 are for 1891 ; one is for Station V. in March, and the other for Station 

 III. in September. 



It thus appears that nine species of named Decapod Crustacea have 

 been captured during the six years from 1890 to 1895 (one or two Deca- 

 pods are recorded for 1889, but only by their generic names, and are 

 therefore not included here). These nine species were all captured with 

 the bottom tow-net — not a single instance is recorded of the occurrence of 

 any of them in the surface nets. The records for the whole nine species 

 for the six years number 46. They are tabulated under eight out of the 

 twelve months, and are characterised by the great majority of them being 

 included in the statistics for the five months that are usually the colder 

 months of the year. The subjoined formulas will show some of these 

 details more clearly : — 



