276 Kev. Canon A. M. Norman on Lepton squamosum. 2. Bathynectes longipes (Risso). 1816. Portunus longipes, Risso, Crust, de Nice, p. 30, pi. i. fig. 5. 1828. Portunus longipes, Roux, Crust, de la Medit. pi. iv. figs. 1, 2. 18-9. 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, Cams, Prod. Faunae Medit. p. 518. Frontal margin slightly four-lobed or merely waved, waves four (representing the usual lobes), outer lobes or waves the wider. First four antero-lateral teeth almost as in B. superba, fifth not more than half as long again as the fourth. Trans-verse ridge of carapace as in the typical species. Chelipeds having the meros unarmed ; 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 (Mus. Norm.) ; Oxwich Bay, near Swansea (Bate) ; Banff (? T. Edward, included in list of Crustacea at the end of his ' Life ' ; but that list has many errors). Distribution. Naples, Zool. Stat. (Mus. Norm.), .Nice (Targioni-Tozzetti), Genoa (Verany), Sicily (Vienna Mu-seum), Adriatic (Grube, Heller, &c~), Black Sea (Ratkke). XXIX. — Lepton squamosum (Montagu), a Commensal. By the Rev. Canon A. M. Nokman, M.A., D.C.L., F.R.S., &c. Lepton 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 Ban try Bay. 1 had never, however, seen it alive until I went to Salcombe, Devonshire, in 1875, for the special purpose of looking for certain Invertebrata which KLontagu had procured there. There I found Lepton squa-
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