I. '08. 92 



Vertical range.— In Irish waters this species has been found 

 between 3G and 020 fathoms. Off the Scotch coast it has oc- 

 curred in 40 fathoms (Cahnan) and 458 fathoms {Porcupine 

 P]xp.), while near Iceland it has been recorded from as much 

 as 1,089 fathoms (Hansen). Jn the N.W. Atlantic it has 

 been found between 122 and 582 fathoms (Smith, Hansen). 



Fandalus Bonnieri, Caullery. 



Pandalus leptorhynchus , G. 0. Sars, 1882, PI. i, figs. 



8-10. 

 Pandalus leptorhynchus , Sars, Caiman, 1896. 

 Pandalus (Dichelopandalus) Bonnieri, Caullery, 1896, PL 



XV, figs. 7-15. 

 Pandalus Bonnieri, Caiman, 1899, Pis. i-iv, fig. 3. 

 Pandalus leptorhynchus , Kin., Wollebaek, 1900. 

 Pandalus leptocerus var. Bonnieri, Appellof, 1906. 



Colour in life. — The carapace is laterally pale reddish ; the 

 gastric and hepatic regions are blueish green and show clearly 

 through the semi-transparent walls. The tip of the rostrum 

 is bright red, the proximal half transparent. The abdomen is 

 pale red, somewhat darker laterally, with rather prominent 

 patches of lemon yellow^ ; traces of this same yellow tint may 

 also, in most cases, be found on the carapace. A minute fleck 

 of pure white is usually to be seen on the pleura of the third 

 somite ; in one specimen examined this white pigment w^as 

 very evident, spreading over the whole of the third pleuron 

 and on portions of the first and second also. The cornea is 

 greyish green or black, with golden reflections; the ocellus is 

 jet black and is much more prominent than in the preceding 

 species. The antennal scales are transparent, the pereiopods 

 transparent with red banding ; the pleopods , uropods and apex 

 of the telson are bright red. The eggs are of a dark sea-green 

 colour. 



Size. —The largest specimen observed measures about 120 

 mm. 



An example of this species taken in the Irish Sea shows a 

 rather peculiar type of variation, which might be termed 

 " sinistral." The long multiarticulate second pereiopod, 

 which is normally on the left side of the animal, is in this 

 specimen on the right, w^hile the short leg with only four an- 

 nulations is situated on the left. This abnormality has been 

 already noticed in P. leptocerus, P. horealis, and P. propin- 

 quus . 



Dr. Caiman has recently made a critical comparison of this 

 species and of Pandalus leptocerus, Smith, and has come to the 



