MATERIALS AND METHODS
The methods of counting and measuring are as
follows: dorsal and anal rays – the last ray of the
Two new species of freshwater gudgeons (Eleotridae: Mogurnda) from the Arguni Bay Region of West Papua, Indonesia
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anal and second dorsal fins is divided at the base
and counted as a single ray; gill raker count – number
of gill rakers on the first branchial arch. This
count is given in two parts (upper and lower limb).
The raker at the angle of the gill arch is included in
the lower limb count; lateral scale count – number
of scales from upper pectoral base to caudal-fin
base, excluding the small scales posterior to the hypural
junction; transverse scale rows – number of
scales from anal spine obliquely upward and backward
to second dorsal-fin base; predorsal scales –
number of scales along midline of nape in front of
first dorsal fin; standard length (SL) – measured
from the tip of the upper lip to the caudal-fin base;
head length – measured from the tip of the upper
lip to the upper rear edge of the gill opening; caudal
peduncle depth is the least depth and caudal peduncle
length is measured between two vertical
lines, one passing through the base of the last anal
ray and the other through the caudal-fin base.
Counts and measurements that appear in parentheses
in the new species descriptions refer to the
range for paratypes. Type specimens are deposited
at the Museum Zoologicum Bogoriense, Bogor,
Indonesia (MZB) and the Western Australian Museum,
Perth (WAM).