Clare Island Survey — Marine Mollusea. 22 33 



Solen pellucidus Pennant. M. Bather rare: dredged 4 times, 8-19 i- 

 living at 13 f., and 19 f., a total of 18 valves, 2 pairs, and 2 living 

 specimens, the largest valve 28 - 5 mm. in breadth. 



S. ensis Linne. W. M. Bather rare : perfect or broken valves taken at 5 f., 

 8 f., and 13 f., together with one living example in the 8 f. haul. 



S. siliqua Linne. W. M. E. Frequent : several living specimens in a haul 

 in 11-19 f. and broken valves in 8 dredgings, 8-19 f. Valves occasional 

 on the beaches at Old Head and Belclare. 



Saxieavella plicata (Montagu). (Panojmea.) M. Bare : twice dredged in 

 Clew Bay from a mile and a half to two miles off Old Head, in 

 August, 1910, 1 valve and a pair of valves in 14 f. and I valve in 

 from 10-12 f. The largest valve taken measured 7'5 mm. x 4 - 5 mm. 



Saxicava rugosa (Linne). W. M. E. Common between tide-marks and 

 in dredgings. Living examples of large size were frequent in low-tide 

 rock-pools on Clare Island, associated with Kellia suburbicularis and 

 deeply embedded in Lithophyllum incrvMam. Taken in 15 dredgings, 

 2-19 f., and living at 5 f., 16 f., and 18 f. The characteristic borings 

 in limestone were, however, only twice observed — once in loose boulders 

 on the outer shore of Dorinish with dead shells, and again, with 6 living 

 specimens, in a dredging in from 5|-11 f. off Mulranny. 

 Var. arctica. Valves frequent in 10 f. and in 19 f. 



Cochlodesma praetemie (Pulteney). (Thracia.) W. M. E. Frequent and 

 locally abundant. Dredged 10 times, 2-19 f., single or paired valves, 

 the largest (in 19 f.) measuring 25 mm. x 17 mm. In one haul, off 

 Mulranny, in from 5|— 11 f., 41 valves were taken. 



Thracia papyracea (Poli). W. M. E. Frequent and locally abundant : 

 taken in 8 hauls, 5-19 f. One haul off Mulranny in 5|-11 f. yielded 

 one living example and 218 valves, many up to 22 mm. in breadth. 



T. distorta (Montagu). W. M. E. Bare : dredged 5 times, 5-14 f. a total 

 of 2 paired and 4 single valves. 



VI. BlBLIOGEAPHY. 



In the strict sense of the term, there is no bibliography of the Clew 

 Bay marine mollusea, since the only published references to the subject 

 are to be found in general works not dealing specially with the Clew Bay 

 area. For the purpose of this list a few records have been extracted from 

 the following works, after the names of which are added in brackets the con- 

 tracted titles used for them in the present list. The "British Conchology" of 

 Jeffreys does not appear to yield any additional Clew Bay Becords. 



R.I. A. PROC, VOL. XXXI. E 22 



