Peppered Moray Eels live in shallow waters, including tide pools and ponds. My fish book describes them as bold and active, and notes that they will even launch themselves out of the water, onto the rocks, trying to catch crabs, their primary prey.
So it’s somewhat surprising that, while I have probably seen glimpses of this eel, these are the first photos I’ve taken of one. This one was swimming along and, obligingly, continued to do so for a while, without disappearing into a crack or hole.
I saw this Undulated Moray Eel out in the open recently and, rather than dart for shelter, it remained where it was opening and closing its jaws. While this looks threatening, it’s typical of most eels, the purpose being to push water over its gills, the equivalent of breathing. However, that’s not to say it’s a good idea to dive down and interact with the eel.
My fish book describes the Undulated Moray Eel as “one of the nastiest.” Its narrow jaws hold three rows of teeth, one running down the middle of its mouth. It’s usual prey includes small fish, but this eel was accompanied by a changing group of fish, and neither seemed too bothered about the other.
In Hawaii, this eel is often called the chainlink eel, for obvious reasons.
At one of my regular snorkeling spots, there’s a spot I call The Eel Motel. It’s a little hole in the rock, which is often occupied by a small Whitemouth Moray Eel or Yellowhead Moray Eel. On this visit, the former was home.
In the top photo, the eel’s head is on the left and its tail on the right. Even though the eel has its mouth closed, the white tip to the tail is another sure identifier. I drifted above it, taking photos, while its head twisted back and forth keeping track of me.
The markings on these eels can vary quite a bit, one of which is a full spread of bold white spots, such as these.
I’d just got in the water recently when I saw this Whitemouth Moray Eel hunting with some Bluefin Trevallies. The trevallies carried on, but the eel was torn between joining them and retreating into the crack it was emerging from. In the end it did neither and I got a few photos before carrying on with my swim.
I was snorkeling recently when I saw this Dwarf Moray Eel hunting with a small Saddle Wrasse. It promptly disappeared under a rock and I didn’t expect to see it again. But I was in no hurry, so moved away a bit and kept watch. After a while the eel poked its head out, hesitated, then swam out.
I snapped these two photos, the first as it emerged and the second as it disappeared again. I like how, in the top photo, the eel oozes out of a hole no bigger around than it is, which is less than an inch! These small eels typically are less than a foot long.
The top photo looks like a single eel, but a closer look shows some color variation. It’s really two Whitemouth Moray Eels. I noticed the first one, with its head on the right of the photo, and took a few photos. Then a second, smaller Whitemouth swam into the picture. It was nearer to me, but then retreated into the crack angling at 45 degrees to the first eel.
It popped out of the other end of the crack, and the two eels looked at each other for a moment. The smaller eel then headed toward the other one, only to be greeted by a nip on the head. Chastened, it retreated back into its crack and that’s the way I left them.
It’s not unusual to see this kind of gang activity while snorkeling, and what they’re doing is hunting. Their prey is small fish that take sanctuary in coral heads and among the rocks.
This bunch of hunters is dominated by Blue Goatfishes, easily identified by their blue bodies and yellow saddle at the base of the tail. There’s also a Bluefin Trevally and Pacific Trumpetfish toward the bottom of the photo and, near the top of the photo, a Peacock Grouper with a Whitemouth Moray Eel curling below it.
Eels are popular members of these hunting parties because they can wriggle into the smallest spaces, flushing out prey. The goatfishes perform similar work using long, white barbels below the chin to probe small spaces in the hopes of disturbing a meal. Other fish tag along hoping to be beneficiaries of this work by being the first to snag any victims that get flushed out.
The appearance of Undulated Moray Eels can be quite varied. The yellow-green head is a common feature, and this black and white patterning is probably its most attractive look. They are, however, considered one of the nastier eels in the area and not to be messed with.
Graham's Island 