PARAMPHITHOIDAE 



177 



to that of puncticulata but distal hind margin lobe ending in a subacute point, to which 

 the lateral longitudinal keel runs out. 

 One inter-antennal tubercle. 



Remarks. There is very strong temptation to regard this form as a more strongly 

 tuberculate variety of puncticulata, especially as a somewhat similar colour pattern is 

 found in both. The differences in the dorsal armature, however, are considerable; 

 puncticulata is much broader across the middle of the peraeon than acanthurus; and 

 finally the structure of the 2nd joints of peraeopods 3 and 4 is decisive. Schellenberg 

 (193 1, p. 162) has proposed the genus Metepimeria for this species. 



The distinctly striped coloration of no. 1 offers an interesting contrast with the 

 blotched coloration of nos. 2 and 3. The type (no. 1) still exhibits the pairs of faint 

 salmon bands on peraeon segment 1 to pleon segment 4 ; the pleon segments have an 

 additional band right at the base; side-plates 4 and 5 show two bands, and side-plate 6 

 one band, being the direct continuation of those on the peraeon segments. Note WS 12 

 for St. WS 86 says : " Colour and markings . . . with a more universal distribution of red 

 pigment. . . [than in Note WS 9, which is the coloured sketch here reproduced] i. Red 

 pigment extends to posterior border of head. ii. Coxopodites of 2nd, 3rd and 4th 

 thoracic legs are pigmented, of the 4th completely, iii. Terga of the 6th and 7th free 

 thoracic segments and the coxopodites of their appendages are fully pigmented, 

 iv. Terga of all abdominal segments completely pigmented, v. Basipodites of the last 

 three peraeopods bear colour at base of their hinder margins". 



Epimeria intermedia, Schell. (Figs. 104 c, 109). 

 Schellenberg, 1931, p. 161, fig. 84, and pi. i, fig./. 



Occurrence: 1. St. 39. South Georgia. 1 ? 15 mm. 



2. St. 140. South Georgia. 2 $? 10 and 12 mm. 



3. St. 142. South Georgia. 1 juv. 5-5 mm. 



b a 



Fig. 109. Epimeria intermedia, Schell a. General view b. Cross-section of peraeon segment 2. 



Description. Integument strongly punctate. Rostrum as long as rest of head or 

 even a little longer (no. 2). Two inter-antennal tubercles Peraeon segments 1-7 

 dorsally carinate, the carinae becoming successively stronger and more imbricate 

 posteriorly; dorso-laterally a slight ridge projecting horizontally and giving a very 



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