Two axiidean ghost shrimps (Crustacea: Decapoda) from India, Guyanacaris keralam sp. nov. (Axiidae) and Paragourretia galathea (K. Sakai, 2017) (Ctenochelidae)
Author
Padate, Vinay P.
0000-0002-2244-8338
Centre for Marine Living Resources & Ecology, Ministry of Earth Sciences, Government of India, Atal Bhavan, LNG Terminus Road, Puthuvype, Kochi, 682508, India. & vinaypadate @ gmail. com; https: // orcid. org / 0000 - 0002 - 2244 - 8338
vinaypadate@gmail.com
Author
Cubelio, Sherine Sonia
Centre for Marine Living Resources & Ecology, Ministry of Earth Sciences, Government of India, Atal Bhavan, LNG Terminus Road, Puthuvype, Kochi, 682508, India.
Author
Takeda, Masatsune
0000-0002-0028-1397
Department of Zoology, National Museum of Nature and Science, Tokyo. 4 - 1 - 1 Amakubo, Tsukuba, Ibaraki, 305 - 0005, Japan. takeda @ kahaku. go. jp; https: // orcid. org / 0000 - 0002 - 0028 - 1397
takeda@kahaku.go.jp
text
Zootaxa
2022
2022-01-26
5093
2
195
217
journal article
2408
10.11646/zootaxa.5093.2.4
a29a1307-a6a4-4198-8653-e79c13f4d008
1175-5326
5905225
FA40C88B-9784-4DC0-9109-90936BAFE808
Genus
Guyanacaris
K.
Sakai, 2011
Guyanacaris
K.
Sakai, 2011: 119
.
Type
species:
Calocaris (Calastacus) hirsutimana
Boesch & Smalley, 1972
, by original designation, gender feminine.
Neoaxius
Sakai, 2017a: 504
.
Type
species:
Neoaxius nicoyaensis
Sakai, 2017
, by original designation and monotypy, gender masculine.
Diagnosis:
Carapace smooth or spinose. Rostrum spine-like, narrow, slightly shorter to slightly longer than eyestalks, slightly depressed, continuous with lateral carinae laterally denticulate; supraocular spines short; gastric carinae spinose, lateral gastric carina converging anteriorly on supraocular spines; postcervical carina present. Pleonal 1 pleuron acute (or obtuse), margin dentate; pleuron 2 broad, less rounded anteriorly and posteriorly, ventral margin truncate, margins dentate or smooth; posterior margins of pleura 3–5 angular to almost straight, dentate or smooth; pleonal 1–5 terga and pleura separated by weak longitudinal carinae. Eyestalk cylindrical, articulating; cornea pigmented. Antennal scaphocerite short, gently curved, with mesial spine at base; distal spine on antennal article 2 directed anteriorly (or anteromesially) and acute. Maxilliped 3 exopod not clearly bent at base of flagellum. Pleurobranchs absent; podobranchs and arthrobranchs well developed; epipods present on maxilliped 2 to P4. P1 unequal or subequal, asymmetrical, with propodus subcylindrical; carpus-dactylus upper margins prominently spinose (or unarmed). P3–5 propodi with (or without) transverse rows of robust setae; dactyli tapering, with or without longitudinal row of robust setae. Pleopods 3–5 appendix interna present.
Male
pleopod 1 present; pleopod 2 with appendix masculina. Uropodal exopod with transverse suture. Telson with lateral fixed spines, posterolateral robust setae absent (or present); apex truncate-rounded to nearly straight (
Sakai 2011
;
Poore 2020
).