Search tool	Example of search string in box	What that means to the database
* = "wildcard". Allows a partial letter string to be entered and implies either no or various extension on this letter string	Hyl*	Will find all uses of "Hyl . . ." anywhere in a record: e.g., Hylarana, Hyla, Hylidae, Hylinae, Hylaedactyla.
* = "wildcard". Allows a partial letter string to be entered and implies either no or various extension on this letter string	*Hyla	Will find all uses of ". . . hyla" anywhere in a record: e.g., Hyla, Hylidae, Plectrohyla, Ptychadena hylaea, Adenomera hylaedactyla
	Hyla	Will find all records that contain stand-alone uses of Hyla: e.g., Hyla, Hyla arenicolor
Strings of words without quotation marks	Lithobates pipiens	Interprets this as "Lithobates OR pipiens" so will find the union of all records that contain either "Lithobates" or "pipiens": e.g., Lithobates omiltemanus, Hylorana pipiens
Strings of word with quotation marks	"Lithobates pipiens"	Interprets this as "Lithobates AND pipiens" so will return all records that have the character string "Lithobates pipiens" anywhere within a record: e.g., all members of the Lithobates pipiens complex.
AND statement. Means that the results of the search must include both words held together by an AND	Lithobates AND pipiens	Same as "Lithobates pipiens"
OR statement. Means that the results of the search will all records that have either of the terms held together by an OR	Lithobates OR "Costa Rica"	Recovers all records that contain the word "Lithobates" or "Costa Rica": 402 records inasmuch as this will include all records for the entire amphibian fauna of Costa Rica
Combining Boolean operators within the Basic Search box (AND, OR, NOT, quotation marks)	Lithobates AND "Costa Rica" NOT forreri	Recovers only records that contain the word Lithobates AND "Costa Rica", but excludes any record that contains the word "forreri" in any part of the record: 9 records
Printable HELP file

Search tool	Example of search string in box	What that means to the database
* = "wildcard". Allows a partial letter string to be entered and implies either no or various extension on this letter string	Hyl*	Will find all uses of "Hyl . . ." anywhere in a record: e.g., Hylarana, Hyla, Hylidae, Hylinae, Hylaedactyla.
* = "wildcard". Allows a partial letter string to be entered and implies either no or various extension on this letter string	*Hyla	Will find all uses of ". . . hyla" anywhere in a record: e.g., Hyla, Hylidae, Plectrohyla, Ptychadena hylaea, Adenomera hylaedactyla
Single word	Hyla	Will find all records that contain stand-alone uses of Hyla: e.g., Hyla, Hyla arenicolor
Strings of words without quotation marks	Lithobates pipiens	Interprets this as "Lithobates OR pipiens" so will find the union of all records that contain either "Lithobates" or "pipiens": e.g., Lithobates omiltemanus, Hylorana pipiens
Strings of word with quotation marks	"Lithobates pipiens"	Interprets this as "Lithobates AND pipiens" so will return all records that have the character string "Lithobates pipiens" anywhere within a record: e.g., all members of the Lithobates pipiens complex.
AND statement. Means that the results of the search must include both words held together by an AND	Lithobates AND pipiens	Same as "Lithobates pipiens"
OR statement. Means that the results of the search will all records that have either of the terms held together by an OR	Lithobates OR "Costa Rica"	Recovers all records that contain the word "Lithobates" or "Costa Rica": 402 records inasmuch as this will include all records for the entire amphibian fauna of Costa Rica
Combining Boolean operators within the Basic Search box (AND, OR, NOT, quotation marks)	Lithobates AND "Costa Rica" NOT forreri	Recovers only records that contain the word Lithobates AND "Costa Rica", but excludes any record that contains the word "forreri" in any part of the record: 9 records
Printable HELP file

Amolops assamensis Sengupta, Hussain, Choudhury, Gogoi, Ahmed, and Choudhury, 2008

Class: Amphibia > Order: Anura > Family: Ranidae > Genus: Amolops > Species: Amolops assamensis

Amolops assamensis Sengupta, Hussain, Choudhury, Gogoi, Ahmed, and Choudhury, 2008, Hamadryad, 32: 6. Holotype: ZSIC A 10272, by original designation. Type locality: "Mayeng Hill Reserve Forest, Kamrup District, Assam, north-eastern India".

Amolops shillong Saikia, Sinha, Shabnam, Lyngkhoi, Pdah, and Dinesh, 2025, Rec. Zool. Surv. India, 125: 114. Holotype: V/A/NERC/ZSI/2049, by original designation. Type locality: "Umthlong, Mawlai (25.595801 N, 91.866721 E, 1432 m asl), Shillong, East Khasi Hills District, Meghalaya, India". Synonymy with Amolops assamensis by Biju, Ellepola, Sarmah, Upadhyaya K., Bisht, Tajo, Hanken, and Garg, 2026, Bull. Mus. Comp. Zool., 164: 1.

Common Names

Assamese Cascade Frog (Ahmed, Das, and Dutta, 2009, Amph. Rept. NE India: 40).

Assam Stream Frog (Dinesh, Radhakrishnan, Gururaja, and Bhatta, 2009, Rec. Zool. Surv. India, Occas. Pap., 302: 67).

Sengupta's Cascade Frog (Mathew and Sen, 2010, Pict. Guide Amph. NE India: 70).

Assam Cascade Frog (Dinesh, Radhakrishnan, Deepak, and Kulkarni, 2023, Fauna India Checklist, vers. 5.0 : 10).

Shillong Cascade Frog (Amolops shillong [no longer recognized]: Saikia, Sinha, Shabnam, Lyngkhoi, Pdah, and Dinesh, 2025, Rec. Zool. Surv. India, 125: 114).

Distribution

Known from two localities in Kamrup District, Assam, Cherrapunjee in Meghalaya, and from two adjacent localities: Umthlong, Mawlai and Umrynjah, Mawlai in Shillong located in the East Khasi Hills District of Meghalaya, all in northeastern India.

Geographic Occurrence

Natural Resident: India

Endemic: India

Comment

Ahmed, Das, and Dutta, 2009, Amph. Rept. NE India: 40, provided a brief account for northeastern India. Mathew and Sen, 2010, Pict. Guide Amph. NE India: 70, provided a brief characterization and photographs. See comments on habitat and occurrence in Assam, India, by Sengupta, Hussain, Gogoi, Choudhury, Kalita, and Baruah, 2010, Hamadryad, 35: 31. Purkayastha and Basak, 2017, Herpetol. Rev., 48: 806, provided the record for Meghalaya, northeastern India. In the Amolops marmoratus group of Jiang, Ren, Lyu, Wang, Wang, Lv, Wu, and Li, 2021, Zool. Res., Kunming, 42: 574–591. Raj, Vasudevan, Aggarwal, Dutta, Sahoo, Mahapatra, Sharma, Janani, Kar, and Dubois, 2023, Alytes, 39–40: 75–78, reported on larval morphology specimens from Assam, India. Amolops shillong was originally laced in the Amolops indoburmanensis species complex, the sister taxon of Amolops siju according to the original publication, where adult morphology and molecular markers were detailed. Saikia, Sinha, Shabnam, Konwar, Borthakur, and Dinesh, 2026, Rec. Zool. Surv. India, 126: 135, provided a molecular tree (16S mtDNA only) that suggests that Amolops shillong and Amolops siju render Amolops indoburmanus paraphyletic. In the Amolops marmoratus group of Biju, Ellepola, Sarmah, Upadhyaya K., Bisht, Tajo, Hanken, and Garg, 2026, Bull. Mus. Comp. Zool., 164: 1–144, who reported on the molecular and morphological phylogenetics of the group.

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For additional information see AmphibiaWeb report
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For related information on conservation and images as well as observations see iNaturalist