280 DREDGING REPORT, 1862, 
telson, bands on the uropoda, a few spots on the periopoda and 
minute specks on the body, brilliant crimson. It is remarkable 
that D. spinosa (Mont) the best known member of the genus is 
not among the eighty-two species of Amphipoda which I have 
either seen or which have been recorded from the north-eastern 
coast. D. tenwicornis (Rathke) has been sent to me by Mr. G. 8. 
Brady, who has taken it abundantly in rock pools at Sunderland. 
Kusirus Helvetie (Bate). The species was described from the 
anterior half of an animal procured at Banff by Mr. Edward; 
the discovery, therefore, of two perfect specimens in deep water, 
off the Northumberland coast is of considerable interest. 
Calliope bidentata, a new species; 40-50 miles off Tynemouth 
in 40 fathoms, and 100 miles off Tynemouth in 25-30 fathoms. 
Heiscladus longicaudatus (Bate and Westw.), from 7-50 miles 
off Tynemouth in 25-40 fathoms. 
Heiscladus brevicaudatus. An undescribed species, procured 
in deep water off Tynemouth. 
Nenia caudadentata. A new species, dredged in deep water 
off the Northumberland coast. 
It will be noticed also in the list of species that Phryaxus longi- 
branchialis—a highly interesting parasitic Isopod—and three 
species of Cythere and Ichthyophorba hamata Liljeborg) are also 
additions to the British Fauna. 
EXPLANATION OF THE PLATES. 
PLATE XII. 
Fig. 1-6. Hippolyte securifrons, (a little enlarged), and various forms of its rostrum. 
1. H. spinus ; crest of carapace and rostrum. 
9. Mysis Didelphys, Telson and caudal appendages. 
10. Antennal scale; jig. 11, its extremity more highly magnified. 
PLATE XIII. 
Fig. 1. Vaunthompsonia rosea, maguified. 
2. Tail; (a), telson; (6), peduncle of lateral caudal appendage ; (c), its inner; (d), its 
outer branch. 
3. Last thoracic foot; 3 a, whip cilium, more highly magnified. 
4. Cyrianassa ciliata, first thoracic leg (a); palp. (0); jig. 5, fourth thoracic leg (a); 
palp. (6); jig. 6, last thoracic leg; jig. 7, abdominal foot; (a), inner; (0), outer 
member; fig. 8, tail; (b), telson; (c), peduncle of lateral appendage; (d), its 
inner; and (e), its outer branch; jig. 8 a, cilium from apex of outer branch of 
lateral appendage; jig. 9, portion of shell. 
PLATE XIV. 
Fig. 1. Cyrianassa elegans, exterior antenna; (a), semicircle of cilia on inner half of 
peduncle; fig, 2, mandible; jig. 3, fourth thoracic leg; (a), foot; (b), palp.; jig. 
4, last thoracic leg ; jig. 4a, whip cilium more highly magnified ; jig. 5, abdom- 
inal foot; (a), nipple like process on inner member; jig. 6, tail; (a), telson; (6), 
peduncle of lateral appendage; (c), its outer or lower branch; (d), its inner or 
upper branch. 
