44 Bulletin, Yanderhilt Marine Museum, Vol. Ill 



fig. 21, 1900 (and synonymy). — Alcock, Catal. Indian Decap. 

 Crust., pt. 2, Anomiira, p. 170, 1905. — 0. Pesta, Die Decap. 

 der Adria, p. 216, 1918. 



Pagurus setuhalensis Capello, Jorn. Acad. Lisboa, vol. V, p. 124, pi. 



1, fig. 1, 1876. 



Pagurus diogenes Costa, Faun. Regn. Nap., Paguridae, p. 5, pi. 2, fig. 



2, 1822. 



Pagurus piideauxii Leach. 

 Plate 9. 



Type : Leach 's type was found bj^ his friend Pndeaux, by whom it 

 was secured in considerable numbers in Plymouth Sound, England. 



Distribution: This species has a rather wide distribution in the 

 littoral and sublittoral zone, having been found down as deep as a 

 hundred fathoms. It is known throughout the Mediterranean, the 

 coasts of Portugal and Spain, the Cape Verde Islands, the British 

 Isles and the North Sea and southwestern Scandinavia. 



It inhabits anemones, shells and sponges with equal complacence. 



Material examined : One specimen inhabiting the sponge Suhcrites 

 domuncula, dredged in 100 fathoms, 9i^ miles E. by S. % S. from 

 Cape Bon Tunis, North Africa, July 19, 1927. One specimen also 

 encased in S. domuncula, dredged in 19 fathoms, grassy bottom, 10 

 miles south of Cagliari, Sardinia, July 23, 1927, by the "Ara." 



Color : A very excellent color plate of this species is given in * * His- 

 toria Natural Vida de los Animales de las Plantas y de la tierra, " 

 T. II, Invert., plate opposite p. 468, (1925). 



Technical description: Precervical portion of carapace ovate- 

 shield-shape with the frontal margin produced to an acute, prominent, 

 triangulate median tooth on either side of which is the widely spaced, 

 less prominent lateral point; the lateral margins are parallel anteri- 

 orly, rounded, posteriorly confluent with the convex posterior margin ; 

 the postcervical region is not quite as long as the precervical and is 

 very wide and convex, the dorsal plate narrow, soft, the lateral lobes 

 rounded ; the abdomen is soft, asymmetrically coiled ; the tip with the 

 usual shell-locking device. 



The ocular scale has the proximal part wide, with its margins con- 

 vex and the distal three-fifths produced to an acute triangulate tip, 

 which is directed forward and extended beyond the rostral tip. The 



