Called pyjama sharks because of the thick, dark stripes that run down their body, you can't mistake this catshark for any other. It has a small head and solid little grey body, only growing up to 1.1 m (3.6 ft). Don't let their small size fool you though, they are strong. While I worked with Oceans Research in 2013, I got to free dive with these sharks, and had to grab onto a particularly large one for measurements/transfer into another tank. She obviously didn't like that, and thrashed so much that her dermal denticles scratched my arm up!
They're known to hide in nooks and crannies, preferring to rest with various other benthic sharks. They are opportunistic feeders, enjoying varities of fish and invertebrates, cephalopods and are seen in the spawning grounds of chokka squid (Loligo reynaudi). In fact, they hide in the egg lairs, and ambush the squid. It's kind of funny to think about, to be honest.
When scared or threatened, this critter has the habit of curling up and having its tail cover its head, kind of like shysharks (Haploblepharus). Sounds like the coping mechanism of many people when they don't want to do taxes, pay bills, deal with the DMV, face the reality that ramen every night is not a balanced diet... if you need me, I'll be curled up in my blanket fort. Same thing, right?
Since it is a small, slow-moving shark, they are preyed upon by larger sharks, especially the broadnose sevengill shark
(Notorynchus cepedianus), cousin to the sharpnose sevengill shark. The eggs are eaten by whelks, Burnupena papyracea and B. lagenaria, which can get through the thick outer covering to the nutrients held within.
Due to its small size, and mild-mannered demeanor, it's a popular aquarium shark. Harmless to humans, it's often caught as bycatch, and are seen as pests by local fishermen, as they are known to steal bait. Many are killed and some are used for lobster bait. There is little to no data about their population numbers, but the IUCN has assessed them as "Near Threatened" due to the expanding fishery in their small range. There are no specific conservation measures in place for this species.