A history of the British sessile-eyed Crustacea . itish. JiEva Hopeana of Costa (Eaun. d. Regn. di Napoli , tav. iii,) appears to us identical with the presentspecies, agreeing with it (contrary to Signer Costasstatement) in the position of the eyes; the only apparentdifference consisting in the equal size and apparentlythree-articulated structure of the two appendages of theminute terminal uropodae. ALBirRONS. 319 J, alhifrons probably occurs all round our coasts. Wehave it recorded on the Devonshire and other coasts,among sea-weeds and under stones, in many parts of theBritish i
A history of the British sessile-eyed Crustacea . itish. JiEva Hopeana of Costa (Eaun. d. Regn. di Napoli , tav. iii,) appears to us identical with the presentspecies, agreeing with it (contrary to Signer Costasstatement) in the position of the eyes; the only apparentdifference consisting in the equal size and apparentlythree-articulated structure of the two appendages of theminute terminal uropodae. ALBirRONS. 319 J, alhifrons probably occurs all round our coasts. Wehave it recorded on the Devonshire and other coasts,among sea-weeds and under stones, in many parts of theBritish islands. It was found especially abundant increvices of rocks at half-tide near Falmouth, by Mr. W. , and we have taken it abundantly beneath andgenerally attached to the under surface of stones betweentide-marks in. Plymouth Harbour, the flat surface of thebody enabling the animal to ensconce itself in very slightcrevices. The late Dr. Johnston also forwarded it to usfrom the Berwickshire coast. 320 ISOPODA. NORMALIA. ASELLID^. JiERA NORDMANNI. Specific character. Broadly ovate ; sides of the segments strongly ciliated,witli hairs set on at right angles ; upper antennce four-jointed, terminal jointnot multiarticulate ; lower antenna3 not more than one-third of the length ofthe animal, with the third joint not half the length of the following ; pleonwith a deep semicircular notch, within which the two small caudal appendagesare visible, extending very slightly beyond the margin. Length, about one-sixth of an inch. Janira Nordmanni. Kathke, in Mem. des Sav. Strang, de St. Petersb.(Fauna der Krym.), t. iii. pi. 6, figs. 1—5, p. Nordmanni. Milne Edwards, H. N. Crust, iii. 150. This small animal was arranged by its first describer,Rathke, as a species of Janir-a; but that genus possesseselongate appendages at the extremity of the body, as inthe common Asellus. Professor Milne Edwards accord- JM^A NORDMANNI. 321 ingly removed it therefrom, and forme
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Keywords: ., bookauthor, bookcentury1800, bookdecade1860, booksubjectcrustacea
