bo 
bo 
bo 
E. J. ALLEN. 
TABLE XV. 
ONOS MUSTELUS. 
Number of 
Totalnumber haulsin Number Average 
Month. of hauls which the of Size inmm. number 
1906-1914. species specimens. per haul. 
occurs, 
April : ; 7 3 9 4-5-8-5 1-3 
Vi — ate to 10 45 5-16... be 
June ic op OG 29 46 2-7-31 O-4 
July . : : eS: 14 19 4-2-32 0-2 
August. Bee) | 1 4-9 0-01 
September . : sy SOD i 1 8 0-01 
SERRANID. 
Roceus labrax Li. (= Labrax lupus Cuv.) 
One specimen of a larval bass 6 mm. long was obtained in Haul IX. (1), 
a midwater haul made in the west part of Bigbury Bay on May 15th, 
1914. It is well represented by Raffaele’s figure (1888 Tav. IV. Fig. 2), 
which is reproduced by Ehrenbaum in Nordisches Plankton (1905) as 
Bigte 7d: 
LABRID. 
Labrus bergylta Asc. Labrus mixtus L.  Ctenolabrus rupestris L. 
Young stages of wrasse belonging to three different species occur in 
the material, but there is some slight doubt as to their correct specific 
determination. The most numerous of the forms is the one in which 
the body and the greater part of the tail is covered with many black 
stellate chromatophores, which, however, cease more or less abruptly 
behind the anal fin, leaving the hinder end of the tail unpigmented. 
This form has been figured by Danois (1918, p. 155) and there seems no 
reason to doubt that he has identified it correctly as L. bergylta. Holt’s 
figure (1899, Pl. V. Fig. 49) is probably the same species, Khrenbaum 
(1905, p. 7) having already pointed out that it certainly is not Ctenolabrus 
rupestris as Holt has named it. The just hatched larva of L. bergylta 
was described by Matthews (1887), and it is not improbable that the 
larva described by Hefford (1910, Pl. I. Figs. 8 and 8a) as L. maztus 
also belongs here. In the present records, as well asin those by Clark 
(1914), all the specimens in which the body is deeply pigmented, but 
the hinder portion of the tail is quite free from pigment, have been 
regarded as Labrus bergylta. 
A second form is Ctenolabrus rupestris. This is well figured by Ehren- 
baum (1905, p. 8). The body is free from pigment excepting for a large 
