Aoridae from the Hancock Expedition — Myers 
breadth. Peraeopods 3-7 of the usual Micro - 
deutopus structure. Uropod 3 (Fig. 2d) rami 
long and slender, longer than the peduncle; 
exopodite very slightly exceeding the length of 
the endopodite, with a single median spine on 
the outer margin and a similar one on the inner 
margin; endopodite with a single spine on the 
outer margin, and a similar, more distal spine 
on the inner margin. Telson (Fig. 2b) broader 
than long, the terminal crests well developed, 
each bearing on its dorsal surface a long seta 
and a short stout spine. 
female paratypes: Body lengths 4.0 mm 
and 3.1 mm. Characters as for male, except for 
the structure of the first and second peraeopoda. 
Peraeopod 1 (Fig. 2c) with the basipodite 
moderately broad; carpopodite and propopodite 
slender, subequal in length, the propopodite 
somewhat broader distally than at the junction 
with the carpopodite; dactylopodite longer than 
the palmar region of the propopodite, with ac- 
cessory teeth on the posterior margin. Peraeopod 
503 
2 (Fig. 2 g) with the basipodite moderately 
broad, carpopodite not greatly expanded distally, 
slightly shorter than the propopodite; dacty- 
lopodite short and stout. 
TYPE MATERIAL: 35 $ $ , 2$ $, Station 
190-34. 
types : $ Holotype, 
IJSNMNo. 112800 
2 $ $ Paratypes, 
BM No. 1967:7:2:5-6 
32 $ $ Paratypes, 
USNMNo. 112802 
2 $ $ Paratypes, 
USNMNo. 112801 
distribution: Galapagos (type locality and 
Cartago Bay, Isabela Island). 
Acuminodeutopus heteruropus Barnard 
Barnard, J. L. 1959. Contr. Allan Hancock 
Fdn. Occas. Paper 21, pp. 29-30, pi. 7. 
Figs. 3 a-d, Aa-e 
Fig. 4. Acuminodeutopus heteruropus Barnard, flaya blanca, costa rica. $ : a, uropod 3; b, parag- 
nath; c, maxillule; d, mandible; e, telson. 
