Granulose Black Coral Crab (Quadrella granulosa) — Habitat, Photos

Q: Where can you find Granulose Black Coral Crab?

Granulose Black Coral Crab can be found in: Egypt East, Laccadive Islands, Australia West, Saudi Arabia West, Oman North, Malaysia East, Taiwan, Malaysia West, Somalia East, Vanuatu, Sudan, Brunei, China, Myanmar, Eritrea, Australia, Hong Kong, Kenya, Qatar, India, Israel, Japan South, India East, India West, Thailand East, Thailand West, Israel South, Saudi Arabia East, Indo-Pacific West, Oman, Oman East, Somalia North, Sri Lanka, Maldives, Vietnam, Seychelles, Cambodia, Indo-Pacific, Papua New Guinea, Iraq, Singapore, Tanzania, Malaysia, Kuwait, Bahrain, South Africa, Red Sea, Japan, Indonesia, Chagos Islands, Mozambique, Jordan, Philippines, Solomon Islands, New Caledonia, Egypt, Yemen, Mascarene Islands, Madagascar, Pakistan, Djibouti, Iran South, United Arab Emirates, Comoros, Thailand, Saudi Arabia, Somalia.

Description

Carapace is subhexagonal convex. Front is cut into four triangular lobes, projects beyond spiniform supraorbital angle. Submedian frontal teeth are separated by deep, V-shaped sulcus. Lateral teeth are not extending as far forward a submedian pair and separated from latter by shallow, skewed indentation. Superior orbital angle is prominent. Postorbital angle is spiniform, inferior orbitalangle conical, acute, projecting almost as far forward as lateral frontal teeth. Antero-lateral margins are sloping to acute, procurved epibranchial spine. Postero-lateral margins are slightly inflated.
Interantennular septum is triangulate. Anterior margin of buccal frame is sinuous, imperceptibly notched medially. Endognath of first maxilliped is paddle-shaped, anterior margin is straight. Exognath of external maxilliped is columnar, tapering distally, obtuse triangular tooth distally on inner margin. Ischium of endognathwith posterior margin is transverse, anterior internal angle produced, internal margin rounded, prominently tuberculate, setose. Lateral margins of merussubparallel, internal margin is setose.
Chelipeds are well developed, subequal, dissimilarity more pronounced in adult male. Anterior margin of ischium of cheliped is with single spine. Merus about 0.8 carapace length, its anterior margin with 7-10 slender, curved spines increasing in size distally. On interior margin of carpus in juveniles are two acute spines; posterior spine smaller, tuberculate in adults. Chela swollen, 1.3 carapace length, granulate posteriorly.
First ambulatory leg is 1.75 times carapace length. Posterior margin of propodispinose. On posterior margin of fourth ambulatory dactyl eight triangular teeth strongly diminishing in size proximally so that three proximalmost teeth appear as tuberculi. On internal surface six spines distally. Sparse, short rows of spinules are scattered on anterior surface. Apical spine is strong, curved. Preapically, on anterior margin a cluster of smaller spines.
Male pleopod is slightly sinuous, setose, tip incurved.