6 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 120 
ventralmost teeth, the apical and subapical, which are the largest, 
usually unicuspidate, and widely separated by a deeply cut, rounded 
notch. Group 2 includes the three medial teeth, which are usually 
bicuspidate and separated by narrower, shallower notches, and a 
minute intercalary tooth, which may occur between medials 1 and 2 
and medials 2 and 3. Group 3, the dorsalmost teeth, are referred to 
as basals. They extend dorsomediad into the mouth field instead of 
medial like the others. Basal teeth are usually acuminate, unicus- 
pidate, and closely spaced; they vary in number from one to four and 
often present useful specific characters. A seta is also present in the 
subfamily Eupontellinae and is located dorsal to the basals. Several 
rows of scalelike accessory spines and patches of spinules occur ad- 
jacent to the dentition, but they have not been used in this system. 
Holotypes, allotypes, and reference specimens have been deposited 
in the U.S. National Museum (USNM). Reference specimens have 
also been deposited in the Marine Invertebrate Collections of Scripps 
Institution of Oceanography (SMIC). 
Labidocera jollae Esterly 
Fiagures 1, 10 
Labidocera jollae Esterly, 1906, p. 74, pls. 9 (figs. 22, 23), 12 (figs. 50-53), 14 
(figs. 89, 91).—Johnson, 1935, p. 411, pls. 3 (figs. 1-3), 4 (figs. 1, 3, 11, 18, 17- 
19, 20-21), 5 (figs. 3-8) [moult stages described]. 
LOCALITIES, MATERIALS.—See table 1. 
LENGTH AND BODY PROPORTIONS.—Adult and stage V copepodite 
measurements, excluding caudal setae, of specimens selected at 
random are as follows: 
Prosome-Urosome Length 
Total Length (mm) Ratio 
no. mean range st. dev. median range 
adult 9 63 2.69 2.07-3.07 0.152 4.1:1 3.6-4.9:1 
adult 60 2.26 1.93-2.61 0.121 2.9:1 2.5-3.3:1 
stage V cop. 2 14 2.02 1.81—2.23 4,2:1 4.0-4.6:1 
stage V cop. o& 15 1.80 1.72-1.92 Baie 3.0-3.5:1 
Description.—Adult female: Overall appearance stocky, urosome 
short relative to prosome, latter roughly four times length of former, 
forehead armed with pair of lateral hooks. A1 short relative to 
prosome, when extended posteriad reaching articulation between 
TIII and TIV. Urosome two segmented; genital segment large, 
asymmetrical, anal segment exceedingly short. In dorsal view (fig. 
1d) genital segment with two anterolateral swellings: one on right 
side larger, knoblike, one on left side a low boss; genital pore lateral, 
opening on right side. Caudal rami asymmetrical, right ramus 
