THE FAUNA OF THE SALCOMP.E ESTUARY. 195 



extended, measured up to 14 inches (35*5 cm.). The species extended 

 to the banks in the lower parts of Salcombe Harbour, though the 

 specimens here were not so large as those found in the mud in the 

 upper parts of the estuary. The worm was seldom met with in gravel 

 unless the latter contained a large quantity of mud. It was found 

 living in a spiral burrow in the mud or sand, which was lined by a 

 mucous secretion from the body of the worm. 



Genital pores were counted in specimens in which they were swollen 

 and distinct, and gave the following results : — Specimen 1 : Pores on 

 abdominal segment 2 to segment 14. Specimen 2: Abdominal segments 

 2 to 10. Specimen 3 : Abd. segts. 2-11. Specimen 4: Abd. segts. 2-14. 

 Specimen 5 : Abd. segts. 2-14. Sp)ccimcn 6 : Abd. segts. 2-15. 



Arenicola marina, Linn., was common on the shores in all parts 

 of Salcombe Harbour proper, in sand or muddy sand. In the Kings- 

 bridge estuary, although not uncommon, it was far less frequent. In 

 the sandbanks near the mouth of Salcombe Harbour very large 

 specimens were met with near low-water mark belonging to the second 

 variety of this species described by Gamble and Ashworth {Quart. 

 Journ. Micr. Sci. xli. 1898). The largest specimens were from 13 to 

 14 inches (33 to 35 cm.) long. 



Arenicola Grubii, ClaparMe. (For detailed description of this 

 species see Gamble and Ashworth, Quart. Journ. Micr. Sci. xliii. 1900.) 

 One specimen only was obtained, from the muddy gravel on the west 

 side of the Salstone. 



Clymenids. Three species of Clymene {Praxilla) were obtained, which 

 are being reserved for detailed description. One species was common 

 on the mud in the upper parts of the Kingsbridge estuary, and extended 

 to the sandbanks near the mouth of Salcombe Harbour. On these 

 latter banks two other species were also found. 



OwENiA fusiformis, DclU Chiaje. Three specimens of this species 

 were found in the clean, fine sand at Millbay. 



Ch^topterus variopedatus {Renier) was found on the shore at 

 extreme low water in two places — on the west side of the Salstone and 

 on the zostera bank near the mouth of Salcombe Harbour on the 

 western side. In each locality two or three specimens only were 

 obtained. 



Amphitrite Johnstoni, Malmgren, was very abundant on the 

 Salstone, especially on the north-east and south-east sides. It was 

 occasionally met with on the shore in all parts of Kingsbridge estuary 

 and Salcombe Harbour, being abundant on the western shore near 

 the mouth of the harbour (under Marine Hotel). In the mud of 

 the Salstone the ends of the tubes were often covered with pieces 

 of shell and gravel, and projected from | to 1 inch above the surface. 



