Robertson and Chivers: Prey of Stenella attenuate 
337 
Table 1 
Number and frequency of occurrence for prey recovered from pantropical spotted dolphins, Stenella attenuata, (n= 428) from the 
eastern tropical Pacific. “No.” represents the total number of a species recovered from all stomachs and “Frequency of occurence” 
represents the number of stomachs in which that species was found. 
Number 
Frequency of 
occurrence 
Prey 
No. 
% 
No. 
% 
Class Osteichthyes 
33,176 
66.6 
270 
63.1 
Order Myctophiformes 
Family Myctophidae 
24,747 
49.7 
172 
40.2 
Symbolophorus spp. 
4,052 
8.1 
151 
35.3 
Myctophum aurolaternatum 
1,379 
2.8 
81 
18.9 
Myctophum nitidulum 
182 
0.4 
11 
2.6 
Myctophum asperum 
160 
0.3 
16 
3.7 
Myctophum spinosum 
109 
0.2 
14 
3.2 
Myctophum spp. 
43 
<0.1 
8 
1.9 
Lampanyctus parvicauda 
6,834 
13.7 
130 
30.4 
Lampanyctus omostigma 
900 
1.8 
31 
7.2 
Lampanyctus festivus 
848 
1.7 
29 
6.8 
Lampanyctus idostigma 
264 
0.5 
35 
8.2 
Lampadena luminosa 
1,358 
2.7 
36 
8.4 
Lampadena sp. 
7 
<0.1 
5 
1.2 
Diaphus splendidus 
1,889 
3.8 
57 
13.3 
Daiphus mollis 
175 
0.4 
32 
7.5 
Diaphus sp. 1 
125 
0.3 
25 
5.8 
close to chrysorhynchus 
Diaphus sp. 2 
13 
<0.1 
5 
1.2 
close to effulgens 
Diaphus sp. 3 
1,533 
3.1 
62 
14.5 
Hygophum proximum 
331 
0.7 
46 
10.7 
Hygophum reinhardtii 
2 
<0.1 
2 
0.5 
Diogenichthys laternatum 
372 
0.7 
55 
12.9 
Triphoturus mexicanus 
195 
0.4 
25 
5.8 
Tarletonbeania crenularis 
6 
<0.1 
3 
0.7 
Notoscopelus resplendens 
23 
<0.1 
4 
0.9 
Ceratoscopelus warmingii 
254 
0.5 
13 
3.0 
Taaningichthys spp. 
276 
0.6 
14 
3.2 
Parvilux ingens 
21 
<0.1 
8 
1.9 
Benthosema panamense 
16 
<0.1 
1 
0.2 
Unidentified myctophids (worn 
3,380 
6.8 
145 
33.8 
Order Perciformes 
Family Nomeidae 
3,053 
6.1 
108 
25.2 
Cubiceps pauciradiatus 
2,961 
5.9 
101 
23.6 
Cubiceps baxteri 
51 
0.1 
18 
4.2 
Cubiceps c.f. paradoxus 
41 
<0.1 
8 
1.9 
Family Acropomatidae 
Howella sp. 
81 
0.2 
5 
1.2 
Family Scombridae 
Auxis thazard 
27 
<0.1 
11 
2.5 
Family Stromateidae 
Hyperglyphe sp. 
6 
<0.1 
4 
0.9 
Order Beloniformes 
Family Exocoetidae 
858 
1.7 
82 
19.2 
Exocoetus volitans 
446 
0.9 
63 
14.7 
Exocoetus monocirrhus 
58 
0.1 
17 
4.0 
Cheilopogon sp. 
26 
<0.1 
13 
3.0 
Family Hemiramphidae 
Oxyporhamphus micropterus 
328 
0.7 
40 9.3 
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