Last modified: July 10, 2018

Fish Misc.

Finescale Triggerfish

Triggerfishes and Filefishes: Family Balistodae

Species: Balistes polylepis (Steindachner, 1876); Balistes comes from the Latin word ballista (a device that shoots arrows—referring to the trigger-like spine) and the Greek word polylepis (many scales)

Alternate Name: Triggerfish. In Mexico called cochi, puerco coche, cochito or pez puerco.

Identification: The body is very compressed; they have a small mouth containing strong, protruding teeth (8 in each jaw); 3 strong, sharp spines are located in the first dorsal fin with 26-28 rays in the second dorsal; small gill slits are located in front of the pectoral fin. The skin is thick with large, rectilinear, plate-like scales. The coloring is brownish with blue speckles on head.

Size: To 32 inches and perhaps as much as 16 pounds.

Range: San Antonio, Chile, to Metlakatla, (southeastern) Alaska) but considered rare north of Baja California.

Habitat: Generally found on the bottom, nearshore near rocky reefs, but they can range down to 1,680 feet deep. Some have arrived north during the El Niño years and it’s speculated that there are at least three established groups near Redondo Beach, Santa Monica and Catalina. They feed on a variety of bethnic-invertebrates such as snails, sponges, sea urchins, shrimp, and crabs as well as the occasional fish and are most active during the day.

Piers: Reported from the Redondo Beach Pier, Santa Monica Pier, and the Cabrillo Mole in Avalon (where quite a few have been caught).

Shoreline: Several have been caught from the shoreline at Catalina and the jetty at Redondo Beach.

Boats: A fairly rare species for California boaters.

Bait and Tackle: Will take most bait including squid, market shrimp, and ghost shrimp.

Food Value: Excellent, all-white fillets that can be cooked many ways. The only problem is that the skin is like leather so you need a good, sharp fillet knife.

Comments: Considered a fairly rare species in California although just enough fish are caught to keep it interesting. I’ve caught four—one in Maui, Hawaii, one while fishing out of La Paz, Mexico, one while fishing out of the Rancho Buena Vista resort in Mexico, and one from the Cabrillo Mole in Avalon.

La Paz Triggerfish

If you visit Hawaii you might look for its most famous fish, a triggerfish, the humuhumunukunukuapua’a, which is pronounced “who-moo-who-moo-noo-koo-noo-koo-ah-pooah-ah. If you can’t pronounce that, just call it humuhumu for short.

From Fishing Hawaii Style, Volume 2, by Jim Rizzuto, 1987

Common name: Two species are commonly known by this name: the pig-nosed triggerfish and the aculeate triggerfish.

Scientific name: Rhinecanthus rectangulus (pig-nosed variety) and R. aculeatus (aculeate variety).

Other names: Reef triggerfish and lagoon triggerfish; tasulkimongara (J) and marasamemongara (J), hage.

Picture — Courtesy of Discover Hawaii Tours

Physical characteristics: Grows to a pound or two. Body deep and compressed. Head pointed, snout-like, ending in a small mouth with strong jaws. Eyes are small and set high on the head about one-third of the  way back along the body. Pectoral fins are small. A single prominent spine sticks up from midback directly behind the eyes. When erected, it is locked in place by a much smaller spine behind it and may not be lowered until the second spine has been depressed. The pig-nosed humuhumu is the Hawai’i State Fish. It has a dark band running from the eyes diagonally along the sides to the anal fin. The aculeate humuhumu has three or four rows of dark spines on the caudal peduncle. The skin of both fish is tough and leathery.

Habits: Feeds on shrimp, crustaceans and seaweed. Common in reef areas ranging from the shallows to depths of five or more fathoms. Generally solitary. Hides in openings in the coral when threatened.

The fish is featured in the following famous song —My Little Grass Shack in Kealakekua Hawaiʻi By Bill Cogswell, Tommy Harrison & Johnny Noble

I want to go back to little grass shack

In Kealakekua, Hawaiʻi

I want to be with all the kanes and wahines

That I used to know long ago

I can hear the old guitars playing

On the beach at Hōnaunau

I can hear the old Hawaiians saying

Komo mai no kāua i ka hale welakahao

It won’t be long till my ship will be sailing

Back to Kona

A grand old place

That’s always fair to see, you’re telling me

I’m just a little Hawaiian

A homesick island boy

I want to go back to my fish and poi

I want to go back to my little grass shack

In Kealakekua, Hawai`i

Where the humuhumunukunukuâpua`a

Go swimming by

You can listen to Don Ho —








2 Responses

  1. I just love to catch fish. It’s been a great feelings indeed. You have caught some really big fish. That’s look amazing. Appreciate your idea. Thanks for sharing.

  2. Just saw one get caught at Ocean Beach pier in San Diego earlier today’.

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