292 REPORT 1868. 



Eucyihere declivis (Norman). Common in deep water, and very fine. 



Argus (G. 0. Sars). I am indebted to Mr. Robertson for specimens of 



this species, from off the Isle of Papa Stour, Scalloway. 

 Ilyolates Bartonensis (Jones). St. N Magnus Bay, in about 50 fathoms, 1867 ; 



very local. 

 Loxocondia impressa (Baird). Tide-marks, and among LaminariaB, living, 



Balta and Lerwick. 

 tamarindus (Jones) (Cyfhere Icevata, Norman). Common in deep water 



down to 100 fathoms. 

 guttata (Norman). Common in deep water, especially in St. Magnus 



Bay, muddy ground. 

 Xestoleberis aurantia (Baird). Tide-marks, and among Laminaria3, Balta, &c. ; 



also dredged. 

 depressa, G. 0. Sars. Common in deep water, especially abundant in 



St. Magnus Bay, in about 50-60 fathoms. 

 Cytherura nigrescens (Baird). Tide-marks, and down to 50 fathoms. 



angulata, Brady. "Lerwick, Mr. D. Robertson" (G. S. Brady). 



striata, G. 0. Sars. 3-60 fathoms, frequent. 



lineata, Brady. St. Magnus Bay, 60 fathoms. 



cuneata, Brady. '< Lerwick, Mr. D. Robertson" (G. S. B.). 



G. 0. Sars. Shetland, Mr. D. Robertson" (G. S. B.). 



undata, G. 0. Sars. St. Magnus Bay, 30-60 fathoms. 



pumila, Brady (MS.). Among Laminaria3, Bressay Sound, 1867. Not 



yet described. 



producta, Brady. With the last. 



cornuta, Brady. " Shetland, Mr. D. Robertson " (G. S. B.). 



acuticostata, G. 0. Sars. St. Magnus Bay, 50-60 fathoms, common. 



clathrata, G. 0. Sars. Ten miles east of Balta, in 73 fathoms, rare. 



cellulosa (Norman). St. Magnus Bay, deep water ; also ten miles east 



of Balta, 73 fathoms, and Bressay Sound, 5-7 fathoms. 



concentrica, C. B. & R. (MS.). Some very small Cytherurce procured 



among Laminariae in 5-7 fathoms, Bressay Sound, are a species which 

 will be described from fossil specimens in the forthcoming ' Monograph 

 of the British Posttertiary Entomostraca/ by Messrs. Crosskey, Brady, 

 and Robertson, to be published by the Palaeontographical Society. 



flavescens, Brady (MS.). One specimen, 20-25 miles N.N.W. of Burra- 



firth Lighthouse, 100-140 fathoms. Not yet described. 



quadrata, n. sp. Carapace viewed laterally subquadrangular, of nearly 



equal height throughout; height more than half length; rounded in 

 front, the dorsal arch the more gradually sloped ; behind produced to a 

 well- developed central process ; ventral and dorsal margins straight, 

 the former terminating behind in a right angle ; surface-sculpture con- 

 sisting of pittings more or less circular in shape, arranged for the most 

 part in longitudinal rows ; a small keel runs parallel with the ventral 

 margin, and terminates in front in a triangular ala well pronounced 

 but small in size. Length ^ inch. 



C. quadrata comes very near to C. striata, but is shorter and higher, 

 the ventral margin quite straight ; the ala is more developed, and the 

 carapace more tumid. 



St. Magnus Bay ; also Plymouth. 



navicida, n. sp. Carapace having dorsal margin perfectly straight in 



the central portion, then sloping both before and behind very obliquely, 

 with a well-marked very obtuse angle ; ventral margin also straight, 

 the straight portion much longer than that of dorsal margin, with two 



