Franco Banfi,Franco Banfi / Ornate ghostpipefish, (Solenostomus paradoxus) Raja Ampat, Irian Jaya, West Papua, Indonesia, Pacific Ocean

Doug Perrine / Pair of Robust ghost pipefish {Solenostomus cyanopterus} mimicing seagrass, Mabul Island, Sabah, Malaysia

David Hall / Ghost pipefish (Solenostomus sp) pair camouflaged amongst green algae. Komodo, Indonesia.

Shane Gross / Ornate ghost pipefish (Solenostomus paradoxus) camouflaged among tall seagrass blades off North Sulawesi, Indonesia.

Pascal Kobeh / Ornate ghost pipefish (Solenostomus paradoxus) juvenile at night, Sulu sea, Philippines

Pascal Kobeh / Halimeda ghost pipefish (Solenostomus halimeda) mimicking the halimeda algae. Sulu sea, Philippines

Pascal Kobeh / Small and green armored pipefish / Longtail ghostpipefish (Solenostomus armatus) is escorting a brown robust / seagrass ghost pipefish (Solenostomus cyanopterus), Sulu sea, Philippines

Pascal Kobeh / Rough / Roughsnout ghost pipefish (Solenostomus paegnius), Sulu sea, Philippines

Pascal Kobeh / Robust / Seagrass ghost pipefish (Solenostomus cyanopterus) imitating an algae / a piece of seagrass, Sulu sea, Philippines

Pascal Kobeh / Rough / Roughsnout ghost pipefish (Solenostomus paegnius), Sulu sea, Philippines

Pascal Kobeh / Pair of Armored pipefish / longtail ghostpipefish (Solenostomus armatus), Sulu sea, Philippines

Pascal Kobeh / Armored pipefish / longtail ghostpipefish (Solenostomus armatus), Sulu sea, Philippines

Pascal Kobeh / Two ghost pipefish together : Rough / Roughsnout ghost pipefish (Solenostomus paegnius) and an Armored / Longtail ghost pipefish (Solenostomus armatus), Sulu sea, Philippines

Pascal Kobeh / Pair of rough / roughsnout ghost pipefish (Solenostomus paegnius), Sulu sea, Philippines

Shane Gross / Portrait of an Ornate ghost pipefish (Solenostomus paradoxus) Anilao, Philippines.

Georgette Douwma / Robust Ghost pipefish (Solenostomus cyanopterus), female carrying eggs in pouch. Lembeh Strait, North Sulawesi, Indonesia.

Georgette Douwma / Ornate or Harlequin ghost pipefish (Solenostomus paradoxus). The large female is carrying eggs in pouch. Lembeh Strait, North Sulawesi, Indonesia.

Georgette Douwma / Scorpion leaffish (Taenianotus triacanthus) with a Harlequin or Ornate ghost pipefish (Solenostomus paradoxus). North Sulawesi, Indonesia.

Georgette Douwma / Harlequin or Ornate ghostpipefish (Solenostomus paradoxus) female carrying eggs in pelvic fins. North Sulawesi, Indonesia.

David Fleetham / Ornate or Harlequin ghost pipefish (Solenostomus paradoxus), Komodo National Park, Indonesia.

Constantinos Petrinos / Roughsnout ghost pipefish (Solenostomus paegnius) red male. Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Harlequin ghost pipefish (Solenostomus paradoxus) female with eggs in the brood pouch. Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Harlequin ghost pipefish (Solenostomus paradoxus) female with eggs in the brood pouch. Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Harlequin ghost pipefish (Solenostomus paradoxus) male, Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Male harlequin ghost pipefish (Solenostomus paradoxus) Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Harlequin ghost pipefish (Solenostomus paradoxus) female with eggs in the brood pouch. Lembeh Strait, North Sulawesi, Indonesia.

Alex Mustard / Ornate ghost pipefish (Solenostomus paradoxus) the larger female is above, her pelvic fins are cupping a clutch of eggs, male below, Dauin, Negros Island, Philippines. Bohol Sea, Pacific Ocean.

Pascal Kobeh / Robust / Seagrass ghost pipefish (Solenostomus cyanopterus) imitating an algae or a piece of seagrass, Sulu Sea, Philippines

Pascal Kobeh / Pair of ornate ghost pipefish (Solenostomus paradoxus). The bigger is the female with her belly swollen by eggs, the smaller is the male. Indonesia. Sulawesi Sea.

Juergen Freund / Robust ghost pipefish (Solenostomus cyanopterus) two on sea floor, Kimbe Bay, West New Britain, Papua New Guinea.

Juergen Freund / Harlequin ghost pipefish (Solenostomus paradoxus) amongst Red sea whips (Ellisella sp) Kimbe Bay, New Britain, Papua New Guinea.

Aflo / Ghost pipefish (Solenostomus) on coral reef with Hydras (Hydractinia epiconcha) Izu, Japan. December.

Alex Mustard / Pair of Rough snout ghostpipefish (Solenostomus paegnius), with female with egg pouch in front of male. Anilao, Batangas, Luzon, Philippines. Verde Island Passages, Tropical West Pacific Ocean.

Solvin Zankl / Robust ghost pipefish (Solenostomus cyanopterus) Raja Ampat, West Papua, Indonesia, Pacific Ocean

Alex Mustard / Female ornate ghost pipefish (Solenostomus paradoxus) with eggs clasped between her pelvic fins. Manado, North Sulawesi, Indonesia. Sulawesi Sea.

Alex Mustard / Backlit photo of a Robust ghost pipefish (Solenostomus cyanopterus) reveals a small fish that it has just eaten in its stomach. Lembeh Strait, North Sulawesi, Indonesia. Molluca Sea.

Franco Banfi / Ornate ghostpipefish (Solenostomus paradoxus) Raja Ampat, Irian Jaya, West Papua, Indonesia, Pacific Ocean

Franco Banfi / Ornate ghostpipefish (Solenostomus paradoxus) Raja Ampat, Irian Jaya, West Papua, Indonesia, Pacific Ocean

Georgette Douwma / Robust Ghostpipefish (Solenotomus cyanopterus), male and female. Manado, North Sulawesi, Indonesia.

Juergen Freund / Two Filamented / roughsnout ghostpipefish (Solenostomus paegnius / cyanopterus) mimicing sea grass, North Sulawesi, Indonesia

Juergen Freund / Robust ghost pipefish (Solenostomus cyanopterus) with a Hairy ghost pipefish (Solenostomus sp.). Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Velvet ghost pipefish (Solenostomus sp) camouflaged against coral, Lembeh Strait, North Sulawesi, Indonesia.

Alex Mustard / A pair of robust Ghost Pipefish (Solenostomus cyanopterus) swimming over sand. The larger individual is the female. Buyat Bay, Sulawesi, Indonesia, February.

Alex Mustard / A female Roughsnout Ghost Pipefish (Solenostomus paeginius / cyanopterus). North coast of Bali, Indonesia, September.

Juergen Freund / Robust ghost pipefish (Solenostomus cyanopterus) on the sandy bottom. This species is often found in seagrass, which it closely resembles. Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Robust ghost pipefish (Solenostomus cyanopterus) on the sandy bottom, looking like a piece of seagrass. Lembeh Strait, North Sulawesi, Indonesia.

GEORGETTE DOUWMA / Ghost pipefish (Solenostomus cyanopterus). Bali, Indonesia.

Chris Newbert / Ghost Pipefish (Solenostomus sp) 60 feet deep, Papua New Guinea

Chris Newbert / Ghost Pipefish (Solenostomus sp) 60 feet deep, Papua New Guinea

Constantinos Petrinos / Robust Ghost pipefish looking like dead leaf {Solenostomus cyanopterus} Sulawesi Indonesia

David Hall / Ghost pipefish {Solenostomus cyanopterus} male & female, camouflaged, Solomon Islands

David Hall / Ghost pipefish, Indonesia (Solenostomus cyanopterus)

Juergen Freund / Ghost pipe fish couple. Indo-Pac (Solenostomus cyanopterus)

Gary Bell/ Oceanwide / Ghost Pipefish (Solenostomus sp), Anilao, Philippines

Gary Bell/ Oceanwide / Ghost Pipefish (Solenostomus sp) male and female, Anilao, Philippines

Roberto Rinaldi / Ghost pipefish (Solenostomus sp), Papua New Guinea

Roberto Rinaldi / Ghost pipefish (Solenostomus sp), Papua New Guinea

Nature Production / Ghost pipefish {Solenostomus cyanopterus} camouflaged in marine plant, Saipan, Northern Mariana Islands, pacific

Etienne Littlefair / Halimdea ghost pipefish (Solenostomus halimeda) swimming over coral reef, Great Barrier Reef, Australia.

Alex Mustard / Robust ghost pipefish (Solenostomus cyanopterus) larval stage, drifting at night in open ocean as part of the plankton, North Sulawesi, Indonesia, Lembeh Strait.

Jacob Guy / Close up of Ornate ghost pipefish (Solenostomus paradoxus) courting, Lembeh Strait, Indonesia.

Jacob Guy / Close up of Ornate ghost pipefish (Solenostomus paradoxus) pair courting. The male swims round the female. Lembeh Strait, Indonesia.

Jacob Guy / Ornate ghost pipefish (Solenostomus paradoxus) resting with fins outstretched on arms of Crynoid (Crinoidea sp.), Indonesia, Pacific Ocean.

Jacob Guy / Ornate ghost pipefish (Solenostomus paradoxus) resting on arms of Crinoid (Crinoidea sp.) Indonesia, Pacific Ocean.

David Fleetham / Ornate ghost pipefish (Solenostomus paradoxus) juvenile with two Brittlestars (Ophiuroidea sp.) wrapped around it, coral reef, Philippines, Pacific Ocean.

Georgette Douwma / Ornate ghost pipefish (Solenostomus paradoxus) composite image showing different colour changes to match surrounding environment on black background. South East Asia, Indo-West Pacific Ocean.

Georgette Douwma / Ornate ghost pipefish (Solenostomus paradoxus) composite image showing different colour changes to match surrounding environment on black background. South East Asia, Indo-West Pacific Ocean.

Georgette Douwma / Robust ghost pipefish (Solenostomus cyanopterus) composite image showing different colour changes to match surrounding environment on black background. South East Asia, Indo-West Pacific Ocean.

Alex Mustard / Pair of Robust ghost pipefish (Solenostomus cyanopterus) moving over the seabed disguised as blades of seagrass, with female on the right, Ambon Bay, Maluku Archipelago, Indonesia, Banda Sea.

Georgette Douwma / Female Harlequin / Ornate ghostpipefish (Solenostomus paradoxus) carrying eggs in pouch formed with pelvic fins, on black background, Bali, Indonesia, Indo-Pacific.

Alex Mustard / Ornate ghost pipefish (Solenostomus paradoxus), juvenile, hides within a crinoid, Dauin Marine Protected Area, Dumaguete, Negros, Philippines. Wildlife Photographer of the Year 2021 competititon cat...

David Fleetham / Female Ornate ghost pipefish / Harlequin ghost pipefish (Solenostomus paradoxus) with egg mass in the pouch formed by the two specialized fins below its abdomen. Philippines.

David Fleetham / Ornate ghost pipefish / Harlequin ghost pipefish (Solenostomus paradoxus) and Robust ghost pipefish (Solenostomus cyanopterus) on coral reef. Dumaguete, Philippines,

Pascal Kobeh / Ornate ghost pipefish (Solenostomus paradoxus). Indonesia, Sea of Flores

David Fleetham / Roughsnout ghostpipefish (Solenostomus paegnius) male in front of the larger green female, Philippines, Tropical West Pacific Ocean.

Georgette Douwma / Harlequin or Ornate ghostpipefish (Solenostomus paradoxus). Female carrying eggs in pouch formed with pelvic fins. Tulamben, Bali, Indonesia.