MARINE BIOLOGICAL STATION AT PORT ERIN. 79 
Dexamine thea, Boeck, from Port Erin harbour (common), 
Hoplonyx similis, Sars (new to Britain), Megamphopus 
cornutus, Norman, and a new species of Podocerus, from 
Laxey Bay, for which the following name and diagnosis 
are proposed by Mr. Walker :— 
** Podocerus herdmam, n. sp. 
** Alhed to P. falcatus and P. minutus, G. O. Sars, 
but differing in the ‘hand’ of the second gnathopod 
of the male, as shown in annexed figures 12 and 13. 
Fig. 12.  Podocerus minutus Fig. 13. 
(after G. O. Sars.) Podocerus herdmani, n. sp. 
The large tooth which in these species springs from 
the base of the hind margin, in this species is much 
shorter and rises from nearly the centre. There is 
also a prominent tooth near the centre of the hind 
margin of the ‘finger’ which is very characteristic. 
The female resembles P. minutus. Length 3 mm.” 
In regard to Megamphopus cornutus, Mr. Walker 
reports to me ‘‘Canon A. M. Norman, im lt. Dec. 6/92 
gives Protomedeva longimana, Boeck 1870, and Podoceropsis 
intermedia, Stebbing 1878, as synonyms of Megamphopus 
cornutus, Norman, 1868. At the same time he sent me 
his type specimen, also one from Farland Point, Cumbrae, 
and one from G. O. Sars labelled Protomedeva longimana 
from the Lofoten Islands. Of these the last has the 
‘horn’ on the Ist epimere by far the longest as it reaches 
to the end of the 3rd (apparent Ist) jot of the lower 
