Something I noticed on the earlier Webkinz pets (including prototypes people have been found)

I noticed there's a bit of a pattern for the earlier designed/released Webkinz pets (this also including the produced prototypes people have found but never had an official release)

HM001 (Frog), HM002 (Pig), HM003 (Cow) (Farm Animals)

HM004 (Black Bear), HM005 (Teddy Bear, prototype), HM006 (Lion), HM007 (Elephant), HM008 (Monkey), HM009 (Hippo) (Jungle/Safari Animals you'd find in the wild)

HM010 (Golden Retriever), HM011 (Cocker Spaniel), HM012 (St. Bernard), HM013 (Basset Hound), HM014 (White Poodle) (Dogs)

HM015 (Grey/White Cat), HM016 (Black/White Cat), HM017 (Gold/White Cat) (Cats)

HM018 (Toucan, prototype), HM019 (Parrot, prototype), HM020 (Flamingo, prototype) (Birds, particularly ones found in Tropical Environments)

HM021 (Googles) (Given it was listed close with the birds possibly because of its duck/goose-like appearance, despite it being a platypus which is a mammal)

HM022 (Lobster, prototype), HM023 (Seal), HM024 (Dolphin, prototype), HM025 (Shark, prototype), HM026 (Killer Whale, prototype) (Ocean/Marine Animals)

Now we don't know what HM027 to HM030 are, but I'm going to suspect possibly other ocean/marine animals were planned if they are in a pattern (Possibilities being an Otter, Octopus, Sea Turtle and Walrus). The Blue Whale (which was released as HM356) could've also been a pet of this set designed earlier on given it was one of the last Webkinz pets released with the classic stringy, hair-like fabric in 2009.

HM031 (Leopard) and HM032 (Tiger) are also known, but nothing from HM033 to HM039, but HM040 (Gorilla) comes last, so maybe this set included jungle/safari animals.

Just a speculation thing. Prototype Webkinz have really caught my interest since I've been a longtime fan when Ganz was releasing the classic-style plushies back in 2005/2006, and seeing all those found prototype plushies being obtained by fans from thrift stores and online auctions really has me wanting to find out more about the lost media/history of Webkinz.