Corallianassa martensi Miers, 1884

Ahmed, Quratulan, Ali, Qadeer Mohammad, Marin, Ivan N., Mubarak, Shumaila & Baloch, Ateeqa, 2025, First record of Clausidium sarii (Copepoda: Clausidiidae) from the coastal waters of Pakistan, with the first description of the male and a new host, Arthropoda Selecta 34 (1), pp. 41-50 : 43-44

Corallianassa martensi Miers, 1884

Figs 2A, B , 3 .

MATERIAL EXAMINED. ♂, Cat no. MRCC-UOK-THAL-02, Northern Arabian Sea , Pakistan, along the Karachi coast, Buleji, 24°50′20.41″ N 66°49′24.15″ E, soft bottom habitats, collected with a hand net under rock boulder, 23 January 2023 .

BRIEF DESCRIPTION. Body long with yellowish translucent. Carapace whitish with tinge of yellowish on rostrum to post-rostral area and transverse band of similar color medially on

dorsal oval; lateral spines are stout, well developed and articulate. Rostrum pointed at tip and extends beyond midlength of eyes. Eyes stout, not reaching distal margin of basal antennular segment; cornea dark, bulging and sub-terminal.Antennular peduncle extends only trifle beyond penultimate segment of antenna; terminal segment of antennule longer than second segment. Left cheliped I wanting; right cheliped I strong and unarmed. Chelae and carpi of chelipeds II mottled with white and yellow-brown; merus with tinge of yellow-brown distodorsally; fingers of cheliped II longer than palm. First abdominal segment bell-shaped; second segment large, being half as long as first one. Telson less than half length of last abdominal segment. Inner margin of exopod of uropod deeply concave; with well-developed truncate apically (not sharp spine) process near proximal end of posterior margin; endopod short and more or less triangular.

SIZE. The total body length of the collected ♂ is 12 cm.

HABITAT. The ghost shrimp was collected in a shallow intertidal area, hiding in the muddy sand under the small rock boulder.

DISTRIBUTION. Widely distributed Indo-Western Pacific species, presently known from Mauritius (type locality), Chabahar Iran, Gulf of Oman, Pakistan ( Northern Arabian Sea ), Sri Lanka, southern Japan, Cocos Islands , Indonesia (Ambon) and Australia (Queensland).

Figures

Fig. 2. A — photo of alive specimen of axiid shrimp Corallianassa martensi after sampling; B — parasitic copepods Clausidium sarii inside the gill chamber of axiid shrimp Corallianassa martensi; C — Clausidium sarii, ♀; D — C. sarii, ♂. Рис. 2. A — фотографиЯ живого ЭкЗемплЯра креветки-аксииды Corallianassa martensi после отбора проб; B — параЗитические ко- пеподы Clausidium sarii внутри жаберной полости креветки-аксииды Corallianassa martensi; C — Clausidium sarii, ♀; D — C. sarii, ♂.

Fig. 3. Axiid shrimp Corallianassa martensi, ♂: A — dorsal view; B — ventral view C — carapace; D — rostrum; E — antenna; F — larger cheliped II; G — pleomeres III–V; H — telson and uropods; I — telson; H — uropods. Рис. 3. Креветка-аксиида Corallianassa martensi, ♂: A — вид сверху; B — вид сниЗу; C — панцирь; D — рострум; E — антенна; F — большаЯ клешнЯ (халипеда) II; G — плеомеры III–V; H — тельсон и уроподы; I — тельсон; H — уроподы.