276 Rev. Canon A. M. Norman on Lepton squamosum. 



2. Bathynectes longipes (Risso). 



1816. Fortunus longipes, Risso, Crust, de Nice, p. 30, pi. i. fig;. 5. 

 1828. Portunus longipes, Roux, Crust, de la M^dit. pi. iv. figs. 1, 2. 

 18i9. Portunus infractus, Otto, Nov. Act. Phys.-Med. Acad. C. L.-C. 



Nat. Cur. vol. xiv. p. 331, pi. xx. fig. 1. 

 1851. Portunus Dalyelli, Spence Bate, Ann. & Mag. Nat. Hist. vol. vii. 



p. 320, pi. vi. fig. 9. 

 1853. Portunus longipes, Bell, Brit. Stalk-eyed Crust, p. 361. 

 1885. Bathynectes longipes, Carus, Prod. Faunae Medit. p. 518. 



Frontal margin slightly four-lobecl or merely waved, waves 

 four (representing the usual lobes), outer lobes or waves the 

 wider. First four antero-lateral teeth almost as in B. superbuy 

 fifth not more than half as long again as the fourth. Trans- 

 verse ridge of carapace as in the typical species. Chelipeds 

 having tlie meros uiiarmed ; carpus simply scabrous and only 

 distally produced on the inner margin into a strongly developed 

 triangular process, terminating acutely, but this process 

 unarmed with lateral teeth ; hand having one distal tooth at 

 the extremity of the inner margin, but otherwise unarmed. 



British Localities. Polperro, Cornwall ; and Falmouth 

 {3fus. Norm.) ; Oxwich Bay, near Swansea {Bate) ; Banff 

 (? T. Sdivard, included in list of Crustacea at the end of his 

 ' Life ' ; but that list has many errors). 



Disto-ibution. Naples, Zool. Stat. {Mas. Norm.)^ Nice 

 {Targioni- Tozzetti) , Genoa {Verany), Sicily {Vienna Mu- 

 seum), Adriatic {Grube, Heller , (fee). Black Sea {Rathke). 



XXIX. — Lepton squamosum {Montagu), a Commensal. By 

 the Rev. Canon A. M. Noeman, M.A., D.C.L., F.R.S., 



&c. 



Lefton squamosum has always been regarded as a rare shell. 

 Although single valves are frequently dredged on various 

 parts of our coasts few cabinets can boast of a series of perfect 

 .specimen^. 



In 1858 I procured a fine series of perfect though dead 

 specimens among heaps of Nullipore and sand which had 

 been dredged for manure and were lying on the shore at 

 Glengariff, in Bantry Bay. I had never, however, seen it 

 alive until I went to Salcombe, Devonshire, in 1875, for the 

 special purpose of looking for certain Livertebrata which 

 Montagu had procured there. There 1 found Lepon squa- 



