THE FAUNA OF THE EXK ESTUARY. 335 



Clupea sprattus, Linncvus. Bullhill Bank, seine, May, 1897, 

 six of 5 cm.; and oft' north side of Warren, April, 1897, six, 5-5- 

 7 cm. [E. W. L. H.] 



Akguilla vulgaris, Turt. Two small ones, about 20 cm. in length, 

 were caught in the dock. 



Conger vulgaris, Cmkr. One of about 4 lbs. weight was seen 

 among the piles in the dock. 



Syngnathus acus, Linnmus. Two were taken in the mosquito net 

 trawl on the sand bank off Starcross, and several in the shove net 

 in Salthouse Lake. Two were taken off the north side of the Warren 

 in the seine, April, 1897. [E. W. L. H.] 



Syngnathus rostellatus, Nilss. This species is easily distinguishable 

 from S. acus of the same size by the number of pre-anal rings, which in 

 S. rostellatus varies, in the specimens obtained at Exmouth, from 13 to 

 15 ; in >S'. acus they number 19-20 (see Duncker, M.B.A. Journal, 

 N.S. vol. V. p. 175). Seven were taken in the mosquito net trawl 

 on the Bar, from 5'8-ll"5 cm.; seven, a quarter- mile south of Polesands, 

 5-9-14'9 cm.; two between Pole and Monster Sands, 7'4 and 138 cm.; 

 a few in the dock and on Shaggles Sand ; and four on the sand bank 

 east of Powderham mussel beds, 12*3 to 15*7 cm. in length. The one 

 measuring 15*7 was a male carrying embryos which hatched out on 

 the same day (July 25th, ISOl), the young fish measuring 14 mm. 

 when hatched. The finrays and rings in the specimens from a quarter- 

 mile south of Polesands (the only ones examined) were found to vary 

 as follows : Pre-anal rings, 13-15 ; total number of rings, 52-56 ; dorsal 

 finrays, 34-40 ; pectoral, 10-11, mostly 11 ; caudal rays, 10. 



