1545 pets
Crustaceans: WoW Battle Pets
Barnacled Hermit Crab — [Barnacled Hermit Crab]
Vendor: Madeline Netley
Zone: Stormsong Valley
Cost: 50
(unlimited supply)
Vendor: Jenoh
Zone: Vol'dun
Cost: 50 (unlimited supply)
Chitterspine Devourer — [Chitterspine Devourer]
Vendor: Crafticus Mindbender
Zone: Nazjatar
Cost: 30
(unlimited supply)
Vendor: Dazzerian
Zone: Nazjatar
Cost: 30 (unlimited supply)
Claudius — [Claudius]
Vendor: Trading Post
Zone: Orgrimmar (H), Stormwind (A)
Cost: 330
(unlimited supply)
Freshwater Pincher — [Freshwater Pincher]
Vendor: Madeline Netley
Zone: Stormsong Valley
Cost: 250 (unlimited supply)
Vendor: Jenoh
Zone: Vol'dun
Cost: 250 (unlimited supply)
Ghostshell Crab — [Translucent Shell]
World Event: Darkmoon Faire (first week of each month)
Vendor: Galissa Sundew
Zone: Darkmoon Island
Cost: 100
(unlimited supply)
Juvenile Brineshell — [Juvenile Brineshell]
Scenario: Island Expeditions
Approximate Drop Rate: Unknown
Magical Crawdad — [Magical Crawdad Box]
Fishing: Fishing [430]
Zone: Terokkar Forest (Fishing Nodes)
Approximate Drop Rate: [Mr. Pinchy] 1 in 500 fished from Highland Mixed schools
Approximate Drop Rate: [Magical Crawdad Box] 1 in 5 (of 3 available)
Mr. Crabs — [Sandy Hermit Crab Shell]
World Event: Children's Week
Quest: Return to the Hall of Castes (H) / Return to the Orphanage (A) [10]
Pearlescent Glimmershell — [Pearlescent Glimmershell]
Vendor: Artisan Okata
Zone: Nazjatar
Cost: 150
Vendor: Finder Pruc
Zone: Nazjatar
Cost: 150
Drop: Iridescent Glimmershell [50]
Zone: Nazjatar
Approximate Drop Rate: Unknown
Pinchy the Plunderer
Special Event: Plunderstorm
Faction: Keg Leg's Crew (Renown Eleven)
Shore Crab
Pet Battle: [3-4] Westfall; [3-6] Azshara; [20-22] Borean Tundra; [20-22] Howling Fjord; [23-24] Twilight Highlands; [25] Nagrand (Draenor)
(supply of 1)
Sparkleshell Sandcrawler — [Sparkleshell Sandcrawler]
Scenario: Island Expeditions
Approximate Drop Rate: Unknown
Strand Crab
Pet Battle: [1-2] Dun Morogh; [3-6] Darkshore; [7-9] Northern Stranglethorn; [9-10] The Cape of Stranglethorn; [14-15] Swamp of Sorrows; [22-23] Dragonblight; [25] Spires of Arak
Strand Crawler — [Strand Crawler]
Profession: Fishing
Quest reward: Bag of Fishing Treasures
Quest reward: Bag of Shiny Things
Zone: Darnassus, Ironforge, Dalaran, Orgrimmar, Stormwind, Thunder Bluff, Undercity
Approximate Drop Rate: 1 in 100
Vendor: Auzin
Zone: Dalaran (Northrend)
Cost: 150 
Approximate Drop Rate: 1 in 100 from [Bag of Fishing Treasures]
Vendor: Kiatke
Cost: 150
Approximate Drop Rate: 1 in 100 from [Bag of Shiny Things]
