Hydrophis annandalei (Bighead Sea Snake)
Hydrophis anomalus
Hydrophis atriceps (Black-headed seasnake) (Attributes)
Hydrophis belcheri (faint-banded sea snake) (Attributes)
Hydrophis bituberculatus (Peters' Sea Snake) (Attributes)
Hydrophis brookii (Attributes)
Hydrophis caerulescens (Dwarf Seasnake) (Attributes)
Hydrophis cantoris (Gunther's Sea Snake) (Attributes)
Hydrophis coggeri (Slender-necked Seasnake) (Attributes)
Hydrophis curtus (Shaw's Sea Snake) (Attributes)
Hydrophis cyanocinctus (Annulated Sea Snake) (Attributes)
Hydrophis czeblukovi (Fine-spined Seasnake) (Attributes)
Hydrophis donaldi (rough-scaled sea snake)
Hydrophis elegans (Elegant or bar-bellied seasnake) (Attributes)
Hydrophis fasciatus (Striped Sea Snake) (Attributes)
Hydrophis gracilis (Graceful small-headed or slender seasnake) (Attributes)
Hydrophis hardwickii (Hardwicke's sea snake) (Attributes)
Hydrophis hendersoni
Hydrophis inornatus (Plain Seasnake) (Attributes)
Hydrophis jerdonii (Jerdon's sea snake) (Attributes)
Hydrophis kingii (Olive-headed or greater seasnake)
Hydrophis klossi (Kloss' Sea Snake)
Hydrophis laboutei
Hydrophis lamberti (Lambert's Sea Snake)
Hydrophis lapemoides (Persian Gulf Sea Snake) (Attributes)
Hydrophis macdowelli (Small-headed or McDowell’s seasnake) (Attributes)
Hydrophis major (olive-headed sea snake) (Attributes)
Hydrophis mamillaris (Bombay Sea Snake) (Attributes)
Hydrophis mcdowelli
Hydrophis melanocephalus (Slender-necked Seasnake) (Attributes)
Hydrophis melanosoma (Black-banded or robust seasnake) (Attributes)
Hydrophis neglectus
Hydrophis nigrocinctus (Daudin's Sea Snake)
Hydrophis obscurus (Russel's Sea Snake) (Attributes)
Hydrophis ocellatus (Ornate Reef seasnake) (Attributes)
Hydrophis ornatus (ornate reef sea snake)
Hydrophis pachycercos (Faint-banded Seasnake) (Attributes)
Hydrophis pacificus (Pacific seasnake) (Attributes)
Hydrophis parviceps
Hydrophis pelamys
Hydrophis peronii (Spiny-headed seasnake) (Attributes)
Hydrophis platurus (Yellowbelly Sea Snake, Pelagic Sea Snake) (Attributes)
Hydrophis schistosus (Common or beaked seasnake) (Attributes)
Hydrophis semperi (Lake Taal Snake) (Vulnerable) (Attributes)
Hydrophis sibauensis (Kalimantan Sea Snake)
Hydrophis spiralis (Yellow Sea Snake) (Attributes)
Hydrophis stokesii (Stoke’s seasnake) (Attributes)
Hydrophis stricticollis (Collared Sea Snake) (Attributes)
Hydrophis torquatus (West Coast Black-headed Sea Snake) (Attributes)
Hydrophis viperinus (Viperine Sea Snake) (Attributes)
Hydrophis vorisi (Estuarine seasnake)
Hydrophis zweifeli (Sepik or Zweifel’s beaked seasnake) (Attributes)